65 Highlights 13 Differences 7 Reactions 0 Likes

Noctua NF-A20 5V PWM vs Noctua NF-A20 FLX: 65 Highlights & 13 Differences — So, Which Fan Actually Works Better

Find out the key differences to decide if you want cost savings or enhanced customization. Which one’s right for you — Noctua NF-A20 5V PWM or Noctua NF-A20 FLX? We’ve compared their product type, height, folded depth & folded height and more to help you choose the better fan.

55 Points
Noctua NF-A20 5V PWM
59 Points
Noctua NF-A20 FLX
vs

Highlights 153

No extras. Just what matters.
55 Points
vs
59 Points

Why is Noctua NF-A20 5V PWM better than Noctua NF-A20 FLX ?

Scroll down for more facts

Noctua NF-A20 5V PWM vs Noctua NF-A20 FLX: Choosing the Right 200mm PC Cooling Fan

The Noctua NF-A20 5V PWM and Noctua NF-A20 FLX are both large-format 200mm PC case fans designed for users who prioritize high airflow and low noise. At a glance, they share the same 7.87 inch frame size, 9-blade design, premium plastic construction, and a maximum speed of 800 RPM. Both models also carry a generous 6-year warranty and comply with CE and RoHS standards, which reinforces their electrical safety and material compliance credentials.

Where they begin to differ is in their voltage requirement, control flexibility, and pricing. The 5V PWM version runs on 5 Volt power and offers variable speed control, while the FLX model operates on 12 Volt and provides two preset speed settings with a defined minimum of 550 RPM. The price gap is also notable, with the 5V PWM listed at $52.99 at Newegg, compared to $35.95 for the FLX at Amazon. That difference alone may influence buyers depending on their system requirements.

Why the Noctua NF-A20 5V PWM Stands Out

The defining trait of the 5V PWM model is its variable speed control, which allows more granular tuning compared to the FLX's two-step configuration. Although both fans reach a maximum speed of 800 RPM, the PWM functionality means the 5V version can dynamically adjust speed depending on system needs. This can help maintain optimal airflow while potentially reducing unnecessary noise or power draw in low-load scenarios.

Power delivery is another major distinction. The fan runs on 5 volts, making it suitable for specialized builds, USB-powered applications, or systems where 12 Volt headers are limited. It draws up to 1.2 watts at high speed, which is still classified as very low annual energy consumption. For compact or energy-conscious setups, this low wattage can be a practical advantage.

In terms of acoustic performance, the 5V PWM produces 18.1 dB at top speed, which falls squarely in ultra-quiet territory. It also incorporates vibration reduction design, motor noise isolation, and blade balance technology. Combined with its overheat protection and overcurrent protection, this model offers an added layer of electrical and operational safety that the FLX does not explicitly list.

Physically, it is the lighter of the two at 0.46 lbs, which may simplify installation in certain large-panel cases. While both are rated as easy to install and come with mounting hardware, the lighter chassis can slightly reduce strain on case mounts in thinner panels.

Where the Noctua NF-A20 FLX Holds Its Ground

The Noctua NF-A20 FLX leans on simplicity and traditional compatibility. Running on 12 volts, it aligns with the standard voltage used by most desktop PC motherboards. For builders who want plug-and-play installation without adapters or special headers, this conventional power requirement can make integration straightforward.

Unlike the PWM model's undefined minimum speed, the FLX specifies a minimum speed of 550 RPM. At lower operation, it reaches a noise level of 10.7 dB, which is exceptionally quiet and ideal for users seeking near-silent airflow in steady-state conditions. For home office or media PC builds, this defined low-speed acoustic rating can be reassuring.

Energy consumption is also slightly lower at peak, topping out at 1.08 watts and dropping to 0.6 watts at low speed. While the difference between 1.2 watts and 1.08 watts is small in real-world terms, efficiency-focused users may appreciate the marginally reduced maximum wattage.

Another subtle advantage is its sustainable packaging, which the FLX lists as supported, while the 5V PWM does not. Both share recyclable materials and excellent energy efficiency ratings, but this small environmental distinction may matter to buyers who value reduced packaging impact.

Finally, the price difference cannot be ignored. At $35.95, the FLX offers similar build quality, the same 7.87-inch blade diameter, and the same 800 RPM ceiling for significantly less money. For budget-conscious builders who do not need 5 Volt operation or PWM control, the value proposition is strong.

Quick Take

The Noctua NF-A20 5V PWM excels in flexibility and protective features, offering variable speed control and built-in overcurrent safeguards. The NF-A20 FLX counters with standard 12 Volt compatibility, defined low-speed acoustics, and a lower purchase price. Both deliver high airflow and premium construction in a 200mm format.

Bottom Line

If your setup specifically requires 5 Volt operation or PWM-based dynamic speed control, the Noctua NF-A20 5V PWM is the more adaptable and technically advanced option. However, for most standard PC builds running on 12 Volt headers, the NF-A20 FLX provides nearly identical airflow and noise characteristics at a noticeably lower cost. In purely practical terms, the better choice depends on your power requirements rather than raw performance.

Verdict

  • Winner: Noctua NF-A20 5V PWM => Best for specialized 5 Volt systems and users who want variable speed control with added electrical protection.
  • Runner-up: Noctua NF-A20 FLX => Excellent value choice with standard 12 Volt compatibility and ultra-quiet low-speed performance.

Comparisons & Facts 153

Side by side. The numbers. The features. No drama.

We put Noctua NF-A20 5V PWM and Noctua NF-A20 FLX to the test in this ultimate fans comparison. Dive into detailed specs, shopper feedback, and real-world use cases to see which fan comes out ahead — and why it might matter to you.

General Information 12

Product Type

What type of fan is this?

70 Noctua NF-A20 5V PWM 0 Votes PC Cooling Fan

51 Noctua NF-A20 FLX 0 Votes PC Cooling Fan

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Product Type

Both fans are PC Cooling Fans, specifically designed to enhance cooling in computing devices. This confirms their primary function is to regulate PC temperatures efficiently.

Identifies the physical design and form factor of the fan.

Intended Use

Where can this fan be used?

45 Noctua NF-A20 5V PWM 0 Votes Indoor

56 Noctua NF-A20 FLX 0 Votes Indoor

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Intended Use

Noctua NF-A20 5V PWM and Noctua NF-A20 FLX are both intended for indoor use, ensuring optimal performance in controlled environments like homes or offices, which is ideal for users looking for efficient indoor cooling solutions.

Specifies where the fan is suitable to operate.

Installation Location

Where can this fan be installed?

65 Noctua NF-A20 5V PWM 0 Votes PC Case

71 Noctua NF-A20 FLX 0 Votes PC Case

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Installation Location

Both Noctua NF-A20 5V PWM and Noctua NF-A20 FLX are designed for PC Case installation, making them suitable for indoor use within computer systems. Their identical installation location ensures compatibility with standard PC cases.

Indicates the supported placement locations for the fan.

Speed Settings Count

How many speed settings does the fan have?

70 Noctua NF-A20 5V PWM 1 Votes Variable

11 Noctua NF-A20 FLX 0 Votes 2

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Speed Settings Count

Noctua NF-A20 5V PWM features a variable speed setting for nuanced control, whereas Noctua NF-A20 FLX has 2 fixed speed settings. The PWM model offers more precise fan speed regulation, best for users who want customizable airflow levels.

Shows how many distinct speed levels the fan offers.

I like that the 5V PWM model has variable speed settings as opposed to just 2 speeds in the FLX which feels kinda limiting.

See more

Fan Category

What category does this fan belong to?

55 Noctua NF-A20 5V PWM 0 Votes Commercial

46 Noctua NF-A20 FLX 0 Votes Household

Defines the general usage category the fan is designed for.

Control Method

How is this fan controlled?

30 Noctua NF-A20 5V PWM 0 Votes Switch Control

21 Noctua NF-A20 FLX 0 Votes Switch Control

Describes how users interact with and control the fan.

Oscillation

Does the fan oscillate?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the fan can oscillate to cover a wider area.

Adjustable Tilt

Can the fan tilt up or down?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows if the fan head angle can be adjusted vertically.

Timer Function

Does the fan have a timer?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Timer Function

Both Noctua NF-A20 5V PWM and Noctua NF-A20 FLX do not include a timer function, meaning users will need to manually control usage duration. Neither fan supports automatic timer shutdown.

Indicates whether the fan can be set to run for a preset time.

Remote

Is a remote control included?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Specifies whether a remote control is included in the package.

Smart Ready

Is this fan smart-ready?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates compatibility with smart features or ecosystems.

Release Year

What year was this fan released?

60 Noctua NF-A20 5V PWM 0 Votes 2018

75 Noctua NF-A20 FLX 0 Votes 2017

Shows the year the model was first released to market.

Dimensions & Weight 12

Cord Length

How long is the power cord?

1.64 ft 1 Votes
Noctua NF-A20 5V PWM
0.98 ft 0 Votes
Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Cord Length

Noctua NF-A20 5V PWM has a longer cord length of 1.64 ft compared to 0.98 ft for the Noctua NF-A20 FLX. This longer cord may provide greater flexibility in placement for the PWM model.

Indicates the length of the power cord for flexible placement.

Cord length really matters for convenience and the 5V PWM has a longer one giving more flexibility for setups.

See more

Height

What is the fan height?

7.87 inch 0 Votes
Noctua NF-A20 5V PWM
7.87 inch 0 Votes
Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Height

Noctua NF-A20 5V PWM and Noctua NF-A20 FLX both share an equal height of 7.87 inches, ensuring a consistent physical fit in systems where height constraints are a consideration.

Measures the vertical height of the fan in operating position.

Folded Depth

What is the folded depth?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Indicates the depth of the fan when folded or collapsed.

Folded Height

What is the folded height?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Measures the height of the fan when folded for storage.

Package Height

What is the package height?

9.45 inch 0 Votes
Noctua NF-A20 5V PWM

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Package Height

Noctua NF-A20 5V PWM has a package height of 9.45 inches, while the package height for Noctua NF-A20 FLX is not available (n/a). PWM's pack height info assists in storage planning.

Measures the height of the fan’s packaging box.

Width

What is the fan width?

7.87 inch 0 Votes
Noctua NF-A20 5V PWM
7.87 inch 0 Votes
Noctua NF-A20 FLX

Represents the overall horizontal width of the fan when assembled.

Depth

What is the fan depth?

1.18 inch 0 Votes
Noctua NF-A20 5V PWM
1.18 inch 0 Votes
Noctua NF-A20 FLX

Indicates the front-to-back depth of the fan footprint.

Folded Width

What is the folded width?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Shows the width of the fan when folded or collapsed for storage.

Package Width

What is the package width?

9.45 inch 0 Votes
Noctua NF-A20 5V PWM

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Shows the width of the retail packaging box.

Package Depth

What is the package depth?

2.36 inch 0 Votes
Noctua NF-A20 5V PWM

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Indicates the depth of the product packaging.

Weight

How much does the fan weigh?

0.46 lbs 0 Votes
Noctua NF-A20 5V PWM
0.65 lbs 0 Votes
Noctua NF-A20 FLX

Represents the total weight of the assembled fan.

Package Weight

What is the package weight?

0.88 lbs 0 Votes
Noctua NF-A20 5V PWM

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Shows the total shipping weight including packaging.

Performance & Airflow 16

Blade Pitch Angle

What is the blade pitch angle?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Indicates the angle of the blades that affects airflow efficiency.

Vertical Adjustment Angle

How much vertical adjustment is available?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Indicates how far the fan head can tilt vertically.

Reverse Airflow

Can the airflow be reversed?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Reverse Airflow

Neither Noctua NF-A20 5V PWM nor Noctua NF-A20 FLX support reverse airflow, so air is only pushed in one direction, suitable for typical PC cooling needs.

Allows reversing airflow direction for circulation purposes.

Airflow Capacity

How strong is the airflow capacity?

70 Noctua NF-A20 5V PWM 0 Votes High

66 Noctua NF-A20 FLX 0 Votes High

Indicates the overall strength of airflow produced by the fan.

Airflow Distance

How far does the airflow reach?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Measures how far the air can effectively travel from the fan.

Fan Blade Diameter

What is the blade diameter?

7.87 inch 0 Votes
Noctua NF-A20 5V PWM
7.87 inch 0 Votes
Noctua NF-A20 FLX

Represents the diameter of the fan blades influencing airflow volume.

Number of Blades

How many blades does the fan have?

65 Noctua NF-A20 5V PWM 0 Votes 9

64 Noctua NF-A20 FLX 0 Votes 9

Shows how many blades the fan uses to generate airflow.

Maximum Speed

What is the maximum fan speed?

64 Noctua NF-A20 5V PWM 0 Votes 800 RPM

72 Noctua NF-A20 FLX 0 Votes 800 RPM

Represents the highest operational speed setting of the fan.

Minimum Speed

What is the minimum fan speed?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

56 Noctua NF-A20 FLX 0 Votes 550 RPM

Shows the lowest operational speed for gentle airflow.

Airflow Coverage Area

What area size can this fan cover?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Indicates the recommended area size the fan can cool effectively.

Oscillation Angle

What is the oscillation angle?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Shows the range of side-to-side airflow movement.

Horizontal Adjustment Angle

How much horizontal adjustment is available?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Measures the adjustable horizontal angle of airflow direction.

Noise & Vibration 10

Vibration Reduction Design

Does the fan reduce vibration?

Yes 1 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Vibration Reduction Design

Both fans feature Vibration Reduction Design, helping to minimize noise and enhance stability for quieter and smoother operation. This makes either option suitable for noise-sensitive environments.

Shows whether the fan includes features to reduce vibration.

Both having vibration reduction is great for noise control but I prefer the 5V PWM because it also has blade balance technology.

See more

Noise Level Low Speed

How loud is the fan on low speed?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

10.7 dB 0 Votes
Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Noise Level Low Speed

Noise Level at Low Speed is not available for Noctua NF-A20 5V PWM but is 10.7 dB for Noctua NF-A20 FLX. The FLX offers quantified quiet operation at low speed, ideal for silent PC builds.

Indicates the sound level produced when operating at the lowest speed.

Noise Level Medium Speed

How loud is the fan on medium speed?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Measures the noise output at medium fan speed.

Blade Balance Technology

Does it use blade balance technology?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Blade Balance Technology

Blade Balance Technology is present in both Noctua NF-A20 5V PWM and Noctua NF-A20 FLX, which improves performance and reduces noise, supporting users seeking stable and balanced fan operation.

Shows if blade balancing is used to minimize wobble and noise.

Night Mode Noise Control

Is there noise control for night mode?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Night Mode Noise Control

Neither Noctua NF-A20 5V PWM nor Noctua NF-A20 FLX includes Night Mode Noise Control, so they lack specialized noise reduction features for nighttime usage.

Automatically optimizes noise levels for nighttime use.

Motor Noise Isolation

Is motor noise isolated?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

Motor Noise Isolation helps to minimize the sound produced during operation, making it a quieter option for home use.

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Motor Noise Isolation enhances operational quietness, making it ideal for sensitive environments.

Indicates whether the motor is isolated to reduce noise transfer.

Noise Level High Speed

How loud is the fan on high speed?

18.1 dB 0 Votes
Noctua NF-A20 5V PWM
18.1 dB 0 Votes
Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The Noise Level at High Speed is rated at 18.1 dB, which is relatively quiet and suitable for environments where noise is a concern.

Shows the maximum noise level at the highest speed setting.

Ultra-Quiet Mode

Does the fan have an ultra-quiet mode?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Ultra-Quiet Mode allows for minimal noise operation, making it suitable for quiet environments like bedrooms or offices.

This feature is beneficial for people who are sensitive to noise while working or sleeping.

Indicates a special mode designed to minimize noise output.

Noise Certification

Does the fan have a noise certification?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Indicates any official noise or quiet-operation certification.

Audible Clicks During Operation

Are there clicking sounds during operation?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether clicking sounds are heard during use.

Power & Electrical 14

Power Plug Type

What plug type does the fan use?

15 Noctua NF-A20 5V PWM 0 Votes Type A

36 Noctua NF-A20 FLX 0 Votes Type A

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Power Plug Type

Both fans use a Type A power plug, ensuring similar power connection compatibility in their respective applications.

Indicates the type of electrical plug used.

Power Consumption Medium

How much power is used on medium speed?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Shows the power usage at medium speed operation.

Surge Protection

Does it have surge protection?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Surge Protection

Surge Protection is absent in both Noctua NF-A20 5V PWM and Noctua NF-A20 FLX, meaning neither model offers built-in safeguards against electrical surges.

Protects the fan from electrical power surges.

Power Consumption High

How much power is used on high speed?

1.2 Watt 0 Votes
Noctua NF-A20 5V PWM
1.08 Watt 0 Votes
Noctua NF-A20 FLX

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Power Consumption High is rated at 1.08 Watt, which indicates the maximum power usage during operation.

Represents the power draw at maximum speed.

Motor Efficiency Rating

How efficient is the motor?

75 Noctua NF-A20 5V PWM 0 Votes Very High

96 Noctua NF-A20 FLX 0 Votes Very High

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The Motor Efficiency Rating is classified as Very High, indicating that it operates efficiently and effectively.

Indicates how efficiently the fan’s motor converts electrical power into airflow performance.

Overheat Protection

Is there overheat protection?

Yes 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The fan includes Overheat Protection, which is crucial for safety, ensuring that the device does not overheat during use.

Automatically shuts down the fan if overheating is detected.

Voltage Requirement

What voltage does the fan require?

5 Volt 1 Votes
Noctua NF-A20 5V PWM
12 Volt 0 Votes
Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Voltage Requirement

Voltage requirement differs: Noctua NF-A20 5V PWM requires 5 Volts, while Noctua NF-A20 FLX needs 12 Volts. Users need to match the fan voltage to system requirements; the PWM model suits lower voltage setups.

Specifies the required operating voltage.

The voltage requirement here is a major difference and I gotta say 5 volts is more practical for most cases than 12 volts.

See more

Power Consumption Low

How much power is used on low speed?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

0.6 Watt 0 Votes
Noctua NF-A20 FLX

Indicates the power used when the fan operates at low speed.

Maximum Wattage

What is the maximum wattage?

1.2 Watt 0 Votes
Noctua NF-A20 5V PWM
1.08 Watt 0 Votes
Noctua NF-A20 FLX

Indicates the maximum electrical power the fan can draw.

Frequency Requirement

What power frequency is required?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Shows the required electrical frequency for operation.

Energy Saving Mode

Does the fan have an energy-saving mode?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the fan includes a mode to reduce power usage.

Standby Power Usage

How much power is used in standby?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

0 Watt 0 Votes
Noctua NF-A20 FLX

Shows power consumed when the fan is on standby.

Controls & Features 14

Mechanical Controls

Does the fan use mechanical controls?

No 0 Votes Noctua NF-A20 5V PWM

Yes 1 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Mechanical Controls

Mechanical Controls are absent on Noctua NF-A20 5V PWM but included on Noctua NF-A20 FLX, making the FLX more user-friendly for direct manual adjustments.

Shows whether traditional mechanical switches or dials are used.

The FLX has mechanical controls while the 5V PWM does not which kinda makes the FLX easier to adjust manually.

See more

Control Panel Type

What type of control panel does the fan have?

35 Noctua NF-A20 5V PWM 0 Votes Switch

31 Noctua NF-A20 FLX 0 Votes Switch

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Control Panel Type

Both fans use a Switch type control panel, providing straightforward on/off functionality suitable for typical user interaction.

Identifies the physical control interface on the fan itself.

Remote Control Range

What is the remote control range?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Indicates the effective distance the remote control can operate from.

Sleep Mode

Does the fan have a sleep mode?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Sleep Mode

Neither Noctua NF-A20 5V PWM nor Noctua NF-A20 FLX have Sleep Mode, so no automatic reduction or shutdown feature for night or low-usage periods is present.

Automatically adjusts speed and noise for sleeping environments.

Auto Shut-Off

Does the fan shut off automatically?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Auto Shut-Off

Auto Shut-Off is not supported by both Noctua NF-A20 5V PWM and Noctua NF-A20 FLX, requiring manual power control for both devices.

Automatically turns off the fan under certain conditions.

Touch Controls

Does the fan have touch controls?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the fan supports touch-sensitive controls.

App Control

Can the fan be controlled with an app?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the fan can be controlled via a mobile app.

Voice Assistant

Does it support voice assistants?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows compatibility with voice assistants for hands-free control.

Preset Programs

Are there preset programs?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether pre-configured operation modes are available.

Child Lock

Is there a child lock feature?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Prevents accidental setting changes by children.

Memory Function

Does it remember previous settings?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Remembers the last used settings when turned back on.

Display Screen

Is there a display screen?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the fan includes a digital display.

Build & Materials 12

Rust Resistant

Is the fan rust resistant?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The fan is Rust Resistant, which enhances its durability when exposed to different conditions.

This means the fan can perform reliably over time without deteriorating from rust.

Indicates resistance to rust and corrosion.

Base Material

What is the base made of?

35 Noctua NF-A20 5V PWM 0 Votes Plastic

26 Noctua NF-A20 FLX 0 Votes Plastic

Indicates the material used for the fan base or stand.

Scratch Resistant

Is the surface scratch resistant?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates resistance to surface scratches.

Anti-Slip Base

Does it have an anti-slip base?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Prevents the fan from sliding during operation.

Main Body Material

What is the main body made of?

35 Noctua NF-A20 5V PWM 0 Votes Plastic

26 Noctua NF-A20 FLX 0 Votes Plastic

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The fan is made from Plastic, which is lightweight and can reduce production costs.

However, it may not be as durable as fans made from metal materials.

Identifies the primary material used for the fan housing.

Blade Material

What material are the blades made from?

65 Noctua NF-A20 5V PWM 0 Votes Plastic

56 Noctua NF-A20 FLX 0 Votes Plastic

Indicates the material used for the fan blades.

Grill Material

What is the grill material?

65 Noctua NF-A20 5V PWM 0 Votes Plastic

56 Noctua NF-A20 FLX 0 Votes Plastic

Noctua NF-A20 5V PWM
vs
Noctua NF-A20 FLX
Grill Material

Grill Material for both Noctua NF-A20 5V PWM and Noctua NF-A20 FLX is plastic, offering lightweight and durable enclosure protection.

Describes the material of the protective grill.

Finish Type

What type of finish does it have?

65 Noctua NF-A20 5V PWM 0 Votes Matte

66 Noctua NF-A20 FLX 0 Votes Matte

Describes the surface finish of the fan exterior.

Color Options

What colors are available?

71 Noctua NF-A20 5V PWM 0 Votes Brown/Beige

57 Noctua NF-A20 FLX 0 Votes Brown/Beige

Lists available color choices for the fan.

UV Resistant

Is it UV resistant?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows whether materials resist UV-related degradation.

Build Quality Grade

How is the build quality rated?

75 Noctua NF-A20 5V PWM 0 Votes Premium

86 Noctua NF-A20 FLX 0 Votes Premium

Represents the overall construction quality and durability level of the fan.

Weather Resistance Rating

What is the weather resistance rating?

0 Noctua NF-A20 5V PWM 0 Votes None

0 Noctua NF-A20 FLX 0 Votes None

Indicates the level of protection against weather elements such as rain or humidity.

Installation & Mounting 10

Portability Features

What portability features does it have?

95 Noctua NF-A20 5V PWM 1 Votes Lightweight Design

91 Noctua NF-A20 FLX 0 Votes Lightweight Design

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Portability Features highlight the fan’s lightweight design, making it easy to move around as needed.

Highlights features that make the fan easy to move.

Both fans are lightweight which is cool for portability but I appreciate the 5V PWM's focus on lightweight design like an actual feature.

See more

Ceiling Mount Compatible

Can this fan be ceiling mounted?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows whether the fan supports ceiling installation.

Adjustable Height

Is the fan height adjustable?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the fan height can be adjusted.

Mounting Hardware

Is mounting hardware included?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The inclusion of Mounting Hardware provides users with the necessary components to secure the fan in place.

Specifies whether required mounting hardware is included.

Mounting Type

What type of mounting does the fan use?

35 Noctua NF-A20 5V PWM 0 Votes Case Mounted

46 Noctua NF-A20 FLX 0 Votes Case Mounted

Defines the primary mounting or placement style of the fan.

Wall Mount Compatible

Can this fan be wall mounted?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the fan can be mounted on a wall.

Floor Standing Compatible

Can the fan be placed on the floor?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the fan can stand freely on the floor.

Desk Placement Compatible

Can it be placed on a desk?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows whether the fan is suitable for desk or tabletop use.

Installation Difficulty Level

How difficult is installation?

95 Noctua NF-A20 5V PWM 0 Votes Easy

96 Noctua NF-A20 FLX 0 Votes Easy

Describes the overall complexity of installation.

Tool-Free Assembly

Can it be assembled without tools?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether assembly can be done without tools.

Safety & Compliance 10

Pet-Safe Design

Is the fan pet-safe?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The fan has a Pet-Safe Design, ensuring that it is suitable for use around small pets without posing a danger to them.

This design feature is important for households with curious animals.

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Pet-Safe Design ensures that the fan is constructed in a way that minimizes risk to pets.

Shows whether the fan is designed to be safe around pets.

Overcurrent Protection

Is overcurrent protection included?

Yes 1 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

Overcurrent Protection is an important feature that prevents potential electrical damage, enhancing user safety.

Protects the fan from electrical overcurrent conditions.

Overcurrent protection is an important safety feature and the 5V PWM has it while the FLX lacks this protection.

See more

Safety Grill Spacing

How wide is the safety grill spacing?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Indicates the distance between grill openings for finger safety.

Tip-Over Protection

Does it have tip-over protection?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Automatically shuts off the fan if it tips over.

Child-Safe Design

Is the fan child-safe?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

Child-Safe Design means the fan has features that protect children from potential hazards.

This design consideration helps promote safety in homes with young children.

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Child-Safe Design ensures that the fan is safe for use around children, reducing the risk of injury.

Indicates features designed to protect children.

Compliance Standards

What compliance standards does it meet?

65 Noctua NF-A20 5V PWM 0 Votes CE, RoHS

85 Noctua NF-A20 FLX 0 Votes CE, RoHS

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Compliance Standards such as CE and RoHS indicate that the product meets European safety and environmental standards.

Lists safety, quality, or regulatory standards the fan complies with.

Blade Guard Design

What type of blade guard design is used?

75 Noctua NF-A20 5V PWM 0 Votes Enclosed Guard

56 Noctua NF-A20 FLX 0 Votes Enclosed Guard

Describes the protective structure used to cover the fan blades.

Electrical Safety Certification

Is the fan electrically certified?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

86 Noctua NF-A20 FLX 0 Votes CE

Indicates official electrical safety certification.

Fire Resistance Rating

Does it have a fire resistance rating?

85 Noctua NF-A20 5V PWM 0 Votes Flame Retardant

76 Noctua NF-A20 FLX 0 Votes Flame Retardant

Indicates the fan’s resistance to fire or high heat conditions.

Safety Auto Stop

Does it have automatic safety stop?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Automatically stops operation when a safety issue is detected.

Maintenance & Care 10

Cleaning Frequency Recommendation

How often should the fan be cleaned?

55 Noctua NF-A20 5V PWM 0 Votes As Needed

26 Noctua NF-A20 FLX 0 Votes As Needed

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Cleaning Frequency Recommendation suggests cleaning should occur as needed, promoting ease of maintenance.

Provides guidance on how often the fan should be cleaned for optimal performance.

Removable Blades

Are the blades removable?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows whether fan blades can be detached for maintenance.

Filter

Does the fan include a filter?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Specifies whether a dust or air filter is included.

Filter Type

What type of filter does it use?

0 Noctua NF-A20 5V PWM 0 Votes Not Applied

46 Noctua NF-A20 FLX 0 Votes Not Applied

Identifies the type of filter used, if applicable.

Maintenance Tools

Are maintenance tools included?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether tools for maintenance are included.

Easy Clean Design

Is the fan easy to clean?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The Easy Clean Design facilitates maintenance, allowing users to keep the fan neat without hassle.

Indicates a design optimized for quick and simple cleaning.

Maintenance Skill Level

What skill level is required for maintenance?

25 Noctua NF-A20 5V PWM 0 Votes Basic

16 Noctua NF-A20 FLX 0 Votes Basic

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Maintenance Skill Level is rated as Basic, indicating that minimal technical knowledge is required for upkeep.

This makes it accessible for most users.

Indicates the level of skill needed for maintenance tasks.

Removable Grill

Is the grill removable for cleaning?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the safety grill can be removed for cleaning.

Filter Replacement Indicator

Is there a filter replacement indicator?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Alerts users when the filter needs replacement or cleaning.

Service Access Panels

Are there service access panels?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows whether access panels are provided for servicing.

Smart & Connectivity 10

Wi-Fi Connectivity

Does the fan support Wi-Fi connectivity?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the fan can connect to a Wi-Fi network for smart and remote control features.

Mobile App Name

What app is used to control the fan?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Specifies the mobile application used to control the fan.

Automation

Can the fan be automated?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows whether automated routines or triggers are supported.

Usage Analytics

Are usage analytics available?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Provides insights into usage patterns and runtime.

Cloud Dependency

Does it rely on cloud services?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether cloud access is required for smart features.

Bluetooth Connectivity

Does the fan support Bluetooth connectivity?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows whether the fan supports Bluetooth for direct local device pairing and control.

Smart Home Ecosystem

Which smart home systems are supported?

Who knows? 0 Votes Noctua NF-A20 5V PWM (Help us out by suggesting one!)

Who knows? 0 Votes Noctua NF-A20 FLX (Help us out by suggesting one!)

Indicates supported smart home platforms.

Firmware Update

Does the fan support firmware updates?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether firmware updates are supported.

Scheduling via App

Can schedules be set via the app?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Allows users to schedule operation times through an app.

Geofencing

Does it support geofencing?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Enables operation based on user location.

Environment & Efficiency 10

Energy Efficiency Rating

How energy efficient is the fan?

85 Noctua NF-A20 5V PWM 0 Votes Excellent

96 Noctua NF-A20 FLX 0 Votes Excellent

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Energy Efficiency Rating of Excellent reflects the fan's capability to provide performance while consuming lower amounts of power.

Indicates how efficiently the fan uses energy relative to its cooling performance.

RoHS Compliance

Is it RoHS compliant?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The fan complies with RoHS standards, indicating that it is made without hazardous materials.

Indicates compliance with hazardous substance regulations.

Carbon Footprint Estimate

What is the estimated carbon footprint?

65 Noctua NF-A20 5V PWM 0 Votes Very Low

96 Noctua NF-A20 FLX 0 Votes Very Low

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

Carbon Footprint Estimate of Very Low highlights its environmentally friendly manufacturing process.

Estimates the environmental impact of the fan based on production and usage.

Eco Mode

Does it have an eco mode?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Automatically optimizes performance to reduce energy use.

Noise-Energy Optimization

Is noise optimized with energy use?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Balances noise output with energy efficiency.

Annual Energy Consumption

How much energy does the fan use annually?

65 Noctua NF-A20 5V PWM 0 Votes Very Low

96 Noctua NF-A20 FLX 0 Votes Very Low

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The fan has an Annual Energy Consumption rating of Very Low, reflecting its efficiency and making it a cost-effective choice for users.

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Annual Energy Consumption rated as Very Low signifies that the fan operates efficiently with minimal electricity usage.

Represents the estimated amount of energy the fan consumes over a year of typical use.

Recyclable Materials

Are recyclable materials used?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

The fan is made from Recyclable Materials, contributing to an eco-friendly product lifecycle.

This aspect is significant for environmentally conscious consumers.

Noctua NF-A20 FLX
Noctua NF-A20 FLX

This product features recyclable materials, contributing to its environmental sustainability.

Using such materials helps reduce waste and can be part of a larger effort towards eco-friendly practices.

Indicates whether recyclable materials are used in construction.

Low Power Standby

Does it use low power in standby?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Shows reduced power usage when idle or on standby.

Sustainable Packaging

Is the packaging sustainable?

No 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Indicates use of eco-friendly packaging materials.

Environmental Certifications

Does it have environmental certifications?

0 Noctua NF-A20 5V PWM 0 Votes None

0 Noctua NF-A20 FLX 0 Votes None

Lists recognized environmental certifications.

Packaging & Logistics 8

Drop Test Rating

What is the drop test rating?

25 Noctua NF-A20 5V PWM 0 Votes Basic Protection

26 Noctua NF-A20 FLX 0 Votes Basic Protection

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Drop Test Rating of Basic Protection indicates the fan is designed to withstand minor drops and impacts.

Indicates the level of durability the packaging has against drops during handling and shipping.

Packaging Type

What type of packaging is used?

5 Noctua NF-A20 5V PWM 0 Votes Boxed

96 Noctua NF-A20 FLX 0 Votes Boxed

Describes the overall packaging format used for the product.

Unboxing Complexity

How complex is the unboxing process?

95 Noctua NF-A20 5V PWM 0 Votes Simple

96 Noctua NF-A20 FLX 0 Votes Simple

Describes how easy it is to unpack and set up.

Protective Inserts

Are protective inserts included?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

Protective Inserts are included in the fan's design, adding an extra layer of safety during transport or while in operation.

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Protective inserts enhance safety by preventing accidental contact with moving parts.

This feature is vital for ensuring user safety during operation.

Indicates whether internal inserts are used to protect components.

Stackable Packaging

Is the packaging stackable?

Yes 0 Votes Noctua NF-A20 5V PWM

Yes 0 Votes Noctua NF-A20 FLX

Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM

Stackable Packaging is a practical feature for storage and transportation, making it easier to handle multiple units.

Noctua NF-A20 FLX
Noctua NF-A20 FLX

Stackable Packaging allows for efficient storage and transportation of multiple units.

Shows whether boxes are designed to be stacked safely.

Number of Units per Box

How many units are in one box?

0 Noctua NF-A20 5V PWM 0 Votes 1

46 Noctua NF-A20 FLX 0 Votes 1

Indicates how many fan units are packed in a single box.

Moisture Protection

Is there moisture protection?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates resistance to moisture during shipping.

Package Handle

Does the package have a handle?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Indicates whether the box includes a built-in handle.

Warranty & Support 5

Extended Warranty

Is an extended warranty available?

No 0 Votes Noctua NF-A20 5V PWM

No 0 Votes Noctua NF-A20 FLX

Shows whether optional extended warranty plans are offered.

Customer Support Channels

How can customer support be reached?

35 Noctua NF-A20 5V PWM 0 Votes Email, Support Portal

61 Noctua NF-A20 FLX 0 Votes Email, Support Portal

Lists available ways to contact customer support.

Support Availability Hours

When is customer support available?

15 Noctua NF-A20 5V PWM 0 Votes Business Hours

6 Noctua NF-A20 FLX 0 Votes Business Hours

Indicates the time range during which customer support services are available.

Service Center Coverage

How widespread is service center coverage?

75 Noctua NF-A20 5V PWM 0 Votes Nationwide

71 Noctua NF-A20 FLX 0 Votes Nationwide

Indicates geographic availability of service centers.

Warranty Duration

How long is the warranty period?

65 Noctua NF-A20 5V PWM 0 Votes 6 years

96 Noctua NF-A20 FLX 0 Votes 6 years

Noctua NF-A20 FLX
Noctua NF-A20 FLX

A warranty duration of 6 years signifies a strong commitment from the manufacturer to quality and durability.

Indicates the total length of warranty coverage provided.

Surveys

Because hot takes deserve votes.

Airflow Performance

How well does this fans move air to cool a room?

Powerful cooling — Over 500 CFM
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Very good airflow — 400 to 500 CFM
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Moderate airflow — 300 to 399 CFM
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Weak airflow — 200 to 299 CFM
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Barely noticeable — Under 200 CFM
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Energy Consumption

How energy efficient is this fans during daily use?

Ultra efficient — Under 30 watts
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Very efficient — 30 to 45 watts
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Average efficiency — 46 to 60 watts
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Power hungry — 61 to 80 watts
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Very inefficient — Over 80 watts
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Noise Level

How quiet is this fans when running at normal speed?

Whisper quiet — Barely audible even at night
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Mostly quiet — Soft background noise
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Noticeable sound — Clearly audible but tolerable
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Quite loud — Often distracting
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Very loud — Hard to ignore
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Ease of Setup

How easy is it to set up and start using this fans?

Effortless setup — Ready to use in minutes
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Easy setup — Simple steps with clear guidance
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Average setup — Takes some time and attention
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Tricky setup — Instructions feel unclear
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Frustrating setup — Time consuming and confusing
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Size and Room Coverage

How well does the size of this fans match typical room needs?

Great coverage — Cools rooms over 300 sq ft
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Very good coverage — 200 to 300 sq ft
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Adequate coverage — 120 to 199 sq ft
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Limited coverage — 60 to 119 sq ft
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Too small — Under 60 sq ft
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Durability and Lifespan

How long does this fans usually last with regular use?

Built for the long run — Over 8 years
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Very durable — 6 to 8 years
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Average lifespan — 4 to 6 years
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Short lifespan — 2 to 4 years
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Breaks quickly — Under 2 years
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Control and Features

How convenient are the controls and features on this fans?

Very convenient — Remote and multiple smart features
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Easy to use — Simple buttons with useful options
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Basic controls — Limited but functional
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Clunky controls — Hard to adjust settings
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Poor controls — Confusing and inconvenient
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Comfort and Daily Use Experience

How comfortable is it to use this fans for long periods?

Very comfortable — Pleasant airflow all day
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Comfortable — Feels nice for extended use
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Acceptable comfort — Fine for short periods
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Uncomfortable — Airflow feels annoying
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Very uncomfortable — Hard to enjoy using it
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Design and Appearance

How does this fans look in a home or office setting?

Stylish design — Looks modern and attractive
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Nice appearance — Blends well with decor
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Neutral look — Nothing special but fine
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Awkward design — Feels outdated
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Unappealing look — Bulky and unattractive
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Pricing

How does the price of this fans feel for what it offers?

Great value — Totally worth the money
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Pretty good price — Feels reasonable
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Fair deal — Matches what you get
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Kinda pricey — Costs more than expected
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX
Crazy expensive — Feels overpriced
0 Votes
Noctua NF-A20 5V PWM
0 Votes
Noctua NF-A20 FLX

Reviews 0

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Average Rating

Noctua
Noctua
Noctua NF-A20 5V PWM
Noctua NF-A20 5V PWM
0 / 5 0 Reviews
Noctua
Noctua
Noctua NF-A20 FLX
Noctua NF-A20 FLX
0 / 5 0 Reviews

Discussions 0

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Awards 0

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Noctua NF-A20 5V PWM
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Noctua NF-A20 5V PWM
Noctua NF-A20 FLX
Noctua
Noctua
Noctua NF-A20 FLX
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