Noctua NF-A4x10 5V, Premium Quiet Fan, 3-Pin, 5V Version (40x10mm, Brown)
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TyrannyReiko
> 3 dayOur dvr system fan started having problems and we ordered this as a replacement after reading reviews. Got it installed and it works fine except for the fact it is way louder than the previous fan. It would be a great replacement for a laptop cause they sound the same but not for our dvr.
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Ray S
Greater than one weekThis fan is a great replacement fan for the noisy factory supplied fan that came with my Amcrest Security System. The factory an was so loud that I thought something was wrong with the DVR. After reading several reviews on Amazon regarding the same issue, a few reviews recommend this fan to solve the noise issue. I have to say that they were right, no more loud fan noise!
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Clyde Anderson
Greater than one weekThis small fan was an inexpensive fix (replacement) for the very noisy CPU fan in my security system DVR. The holes on the new fan didnt line up with the holes in the old fan, so I carefully used some silicone cement to attach the new fan. It works great and is very quiet. The 3-prong to 2-prong adapter that came with the fan worked great.
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TELESCOTT
> 3 dayIts been a couple months and the fan is getting noisy. Used on my Pi4.
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Bates Hotel
> 3 dayVery Happy with this fan, quieted my DVR to near silent!
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William B.
> 3 dayPerfect replacement for the fan on my Amcrest DVR.
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Nick
> 3 dayRunning this on top of an aftermarket heatsink (https://smile.amazon.com/dp/B00ZRDRX8M/) on an ODroid-XU4. Its quiet and blows just enough air to keep the CPU from throttling under even extreme loads (8 cpuburn processes).
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Tony Putra
Greater than one weekNice seller and good quality product
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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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Jimbo89
> 3 dayVery Quiet, great fan
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 |