Noctua NF-A4x10 5V, Premium Quiet Fan, 3-Pin, 5V Version (40x10mm, Brown)
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Christian
> 3 dayI originally had a Canakit case for my Raspberry Pi 4 Model B 4GB with the Canakit 30mm Fan. I wanted to mess around and overclocked the RPi from its base 1.5GHz to 2GHz but in order to do so I needed the max overvoltage applied which was level 6 which adds 0.15V I believe to the SoC. When testing the CPU under load using sysbench the 30mm fan would need to be at 5V and would be loud and nearly reach 80C which is near throttling temperature for the CPU. at 3.3V I couldnt hear the fan but it would throttle.
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Bates Hotel
> 3 dayVery Happy with this fan, quieted my DVR to near silent!
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Alexis
10-06-2025Good quality
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Denny Wislocker
> 3 dayInstallation is easy with the rubber pull clips, quiet running
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Commander Keen
Greater than one weekBasically runs just above a whisper; if youre more than eight inches from this thing, you dont know its spinning because its just not making any sound at all. Comes with a lot of adapters and such, probably spikes the price higher than it should be, but Im certainly satisfied with the reduction in RPM noise
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Amazin Customer
06-06-2025Works as expected
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L. Liukonen
> 3 dayI have a heatsink for my raspberry pi that I picked up that was both noisy AND annoying as it had LEDs on the fan. Swapped it out with this fan and, while I see it spining, from a distance I hear nothing! absolutely quiet AND I am running my Pi4 24/7 at 34.56 C / 94.2 F... had to take the heatsink off to make sure the sensor was working!
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Go Vols
> 3 dayReplaced a fan for a RP3B Temps now ~37c. Easy to install into a new CPU cooler.
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The Engineer
> 3 dayIt’s pretty quiet and blows pretty hard, I used it on a raspberry pi and My temps are about half of what they are with no fan
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Richard
> 3 dayThis product stopped working long before it should have... Cant return. I would have just replaced it with the same fan, but wasnt allowed that option. I have the same fans cooling my gaming PC. No problems.
Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and an AAO standard frame, the NF-A4x10 5V is a dedicated 5V version of Noctua’s highly optimised, premium quality quiet 40x10mm fan. Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearing ensure superb running smoothness and excellent long-term stability. Topped off with modular cabling and the OmniJoin Adaptor Set, the NF-A4x10 5V is a premium choice for demanding 5V applications.
5V version
Many devices such as network or storage solutions use 5 volt 40mm fans. With the same operating voltage and the included OmniJoin adaptor set that makes it compatible with proprietary fan headers, the NF-A4x10 5V is ideal for replacing noisy or broken 5V 40mm fans.
Please Note: Being a 5V fan, the NF-A4x10 5V cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.
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Flow Acceleration ChannelsThe NF-A4x10 impeller features suction side Flow Acceleration Channels. By speeding up the airflow at the crucial outer blade regions, this measure reduces suction side flow separation and thus leads to better efficiency and lower vortex noise. |
SSO2 BearingThe NF-A4x10 features the further optimised second generation of Noctua"s renowned, time-tested SSO bearing. With SSO2, the rear magnet is placed closer to the axis to provide even better stabilisation, precision and durability. |
Reduced motor hub sizeThanks to its streamlined, compact motor design, the NF-A4x10"s motor hub is smaller than with conventional 4cm fans. This allows for more blade surface area and thus contributes to the NF-A4x10"s superior airflow and pressure performance. |
Inner Surface MicrostructuresWith the tips of the fan blades ploughing through the boundary layer created by the Inner Surface Microstructures, flow separation from the suction side of the blades is significantly suppressed, which results in reduced blade passing noise and improved airflow and pressure efficiency. |
Please Note:
Being a 5V fan, the NF-A4x10 5V cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.
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| NF-A4x10 PWM | NF-A4x10 FLX | NF-A4x10 5V PWM | NF-A4x10 5V | |
| Connector | 4-pin PWM | 3-pin | 4-pin PWM | 3-pin |
| Voltage | 12V | 12V | 5V | 5V |
| RPM: | Max: 5000 / Min: 1000 | 4500 | Max: 5000 / Min: 1000 | 4500 |
| RPM with L.N.A. | 3700 | 3700 | - | - |
| Acoustical Noise | 19,6 dB(A) | 17,9 dB(A) | 19,6 dB(A) | 17,9 dB(A) |
| Acoustical Noise with L.N.A. | 12,9 dB(A) | 12,9 dB(A) | - | - |
| Size | 40x40x10 mm | 40x40x10 mm | 40x40x10 mm | 40x40x10 mm |