Noctua NF-A8 PWM, Premium Quiet Fan, 4-Pin (80mm, Brown)
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R.L. Farrell
Greater than one weekI installed this fan as replacements in two of my HP desktop computers with fans (both Cooler Masters) that had failed at nearly the same time. (planned obsolescence?) The Noctua NF-A8 PWM fans came with more than enough additional hardware, mounting options and electrical connections to facilitate replacement. I removed the old fans and heat-sinks. Cleaned mating surfaces of CPUs and heat-sinks and applied fresh thermal compound (Noctua NT-H1) and reassembled to motherboards. Both replacements performed perfectly and were very quiet as well as efficient. Both PCs run 54 watt Intel i3 CPUs and average temps are 28C at idle per Core Temp app, and never exceed 57C while under load test. I am well pleased. A great value for a reasonably priced fan with superior performance.
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tloppa
> 3 dayLoved their care they put into packaging and attention to detail. Ordered 2x 80mm fan for my mini itx and it works wonderfully. silent and keeps my case cool as exhaust fans.
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MrRuckus
09-06-2025Put in a Honeywell fan enclosure to replace the existing 80mm which the bearings went out on. This is working as it should. I expect it being Noctua to last a while. Very low noise compared to the stock fan.
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Lantana Al
> 3 dayI bought a Dell 3880 and its a great little system... EXCEPT THE CPU FAN IS TOO NOISY. If youre in a quiet environment then you will almost certainly notice the noise.
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Random
> 3 dayI had a bit of a nerve-wracking experience installing it -mostly due to the high stakes (it is my cpu, after all!) and lack of experience. But everything I needed was there and since installing it Ive largely forgotten its even there.
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Tom Savage
Greater than one weekAhhh, quiet. Replaced the stock fans on my radio & power supply and no more background fan noise.
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Dude Guy
> 3 dayGood fan, its more or less silent, you cant hear it thats for sure. Good quality. Utterly horrible color scheme, tan and brown, nice.
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Mack
> 3 dayHave these to cool my game card, works well.
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GJW
> 3 dayThis is the quietest fan Ive ever used - dead silent, in fact; however, the reason its so quiet is that it doesnt spin. When the computer starts, the fan spins for less than a second then does nothing, no matter how warm the computer gets. Ive tried several other fans on the same MB header, all work. The other fans are noisier than Id like, which is why I ordered this one. If, however, the tradeoff for a quieter computer is overheating, Ill endure the noise.
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K. Snyder
> 3 dayEven they do the job well and are very quiet, they are fugly and I had to swap them out right after i installed them.
The NF-A8 is a highly optimised, premium quality quiet 80mm fan. Featuring Noctua’s AAO (Advanced Acoustic Optimisation) frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A8 further improves the renowned quiet cooling performance of the award-winning NF-R8. The PWM version sports Noctua’s custom designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise-Adaptor to reduce the maximum speed during PWM control from 2200 to 1750rpm. Its superb running smoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands.
AAO frame
Noctua"s AAO (Advanced Acoustic Optimisation) frames feature integrated anti-vibration pads as well as Noctua"s proprietary Stepped Inlet Design and Inner Surface Microstructures, both of which further refine the fan"s performance/noise efficiency.
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Flow Acceleration ChannelsThe NF-A8 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-A8 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. |
Integrated anti-vibration padsIntegrated anti-vibration pads made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard screws and other mounting systems. |
Scope of delivery
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Inner Surface Microstructures
With 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.
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| NF-A8 PWM | NF-A8 FLX | NF-A8 ULN | NF-A8 5V PWM | NF-A8 5V | NF-A8 PWM chromax.black.swap | |
| Connector | 4-pin PWM | 3-pin | 3-pin | 4-pin PWM | 3-pin | 4-pin PWM |
| Voltage | 12V | 12V | 12V | 5V | 5V | 12V |
| RPM | Max: 2200 / Min: 450 | 2000 | 1400 | Max: 2200 / Min: 450 | 2200 | Max: 2200 / Min: 450 |
| RPM with L.N.A. | 1750 | 1650 | 1100 | - | - | - |
| RPM with U.L.N.A. | - | 1200 | - | - | - | - |
| Acoustical Noise | 17,7 dB(A) | 16,1 dB(A) | 10,4 dB(A) | 17,7 dB(A) | 17,7 dB(A) | 17,7 dB(A) |
| Acoustical Noise with L.N.A. | 13,8 dB(A) | 12,9 dB(A) | 6,5 dB(A) | - | - | - |
| Acoustical Noise with U.L.N.A. | - | 7,9 dB(A) | - | - | - | - |
| Size | 80x80x25 mm | 80x80x25 mm | 80x80x25 mm | 80x80x25 mm | 80x80x25 mm | 80x80x25 mm |
| Colour | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige | Black with swappable coloured anti-vibration pads |
