Noctua NF-A4x10 5V, Premium Quiet Fan, 3-Pin, 5V Version (40x10mm, Brown)
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Max
> 3 dayThis fan does its job, and does it so quietly that I forget that its running. Ive been using it for about 2 months now as an extrusion motor fan on my Prusa MK3S, and its been running continuously from a 5v port from a Raspberry Pi 2.
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mbdundee
> 3 dayI replaced the stock fan in an Amcrest video surveillance recorder with this fan and it knocked down the noise substantially. It can be heard but it is considerably quieter than the stock fan.
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Andy
> 3 dayThese little fans are just awesome! Great packaging and quality! A++++
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Some Guy
> 3 dayI use these on my Raspberry Pi 3 and 4. The fans work well as simple, effective cooling solutions.
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RT4278
> 3 dayThe packaging is crazy for just a fan. This fan is way more quiet then the piece of junk cheap fan that came stock in my NVR power supply and case. The thing sounded like an aircraft taking off, but changing to this noctua fan made everything normal like it should be - whisper quiet now. Super impressed with this fan and well worth the extra few bucks. any future fans I get will be Noctua.
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Linda Feres
> 3 dayI no longer have to listen to the outrageous loud fans in my security DVR.
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Quality
> 3 dayThe first impression is always the most important one: the packaging is just excellent and contains a lot of information, very well designed and not a cheap chinglsih design or text. The fan is designed in Austria and manufactured in Taiwan. It comes with a 6 year manufacture warranty.
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Yaron
> 3 dayWhen it outputs air from the Raspberry PI 3 its very noisy. When I flip it to blow air into the case its much better. OK I guess.
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SVS
> 3 dayNoisy little fans. i purchased them to replace another ones ( louder ) thinking the positive reviews would reflect the outcome; sadly i think i paid too much for a little fan than i should.
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R. Mellott
> 3 dayI was very disappointed in this fans noise level. I have other Noctura fans in my system and am very pleased w/ them but this one was way off the charts in noise level. I used a generic one instead thats virtually silent.
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 |