Noctua NF-A4x10 5V, Premium Quiet Fan, 3-Pin, 5V Version (40x10mm, Brown)
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MV
> 3 dayGreat little fans. Excellent quality. It includes everything you need to install. Also, very quiet. Cant even tell if theyre on.
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Joshua C Cain
> 3 dayThis fan is awesome. I bought this to replace the exhaust fan on my Amcrest DVR. With the original fan it measured about 55 dB from a foot away. With the months fan it measured 35dB. Feels like it puts out as much air if not more. I used the silicon mounts it came with and it holds it very secure but doesnt allow noise from the fan to resonate through the chassis of the DVR. Definitely worth the money.
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J. Billhofer
> 3 dayExpensive, but very effective and when using the elastic mounts very quiet.
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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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Sean C. Laclair
> 3 dayGreat little fan for the build I have. using it on a Raspberry PI 3. Has all the tools you need and even a few you may not. Quality that is what this fan screams.
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Ben de Guzman
Greater than one weekGreat little fan that pushes a ton of air for its size and comes with a variety of connectors to fit your needs my only complaint is the wires are a bit long so cable management can be tricky if you’re working with something small like a pi other than that this fan is stellar
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John K
> 3 dayBought one of these for my raspi setup and it works great. Super quiet and efficient, keeping the board from 50°C-60°C(with heat sinks alone) to 30°C-35°C. Im tempted to buy Noctua fans to replace my 3D printers fans.
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William Vaughn
> 3 dayThis fan works. Its as quiet as advertised and hopefully will last a decade.
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Phil
> 3 dayPerfect replacement fan for an old Dreamcast (requires 3D printed adapter). Wires are really long and I was impressed with the packaging and hardware/adapters that were included even though I didn’t need them in my case.
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J
> 3 dayBought this fan to replace the super loud fan on my large Netgear 24 port switch (GS724T v2) and it went from sounding like a hair dryer to whisper quiet. Love it so far.
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 |