Noctua NF-A8 ULN, Ultra Quiet Silent Fan, 3-Pin (80mm, Brown)
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Vidiot
> 3 dayThis thing is as quiet as a fan that is off. And, it also moves air exactly as well as a fan that is off.
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Michael B.
> 3 daynice fan
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Jeff
> 3 dayReplaced the noisy humming fan in an inexpensive HTPC case with this fan. Used the adapter to reduce fan speed to 1100.. The anti vibration mounts eliminate any issues with noise being transferred to the case. This may be the best 15.99 I ever spent. That may seem like a lot, but eliminating the noise that came from the other fan made my ears happy. No change in before and after temps as measured by RealTemp. Noctura will be my go to in the future when I need any type of computer fan.
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Joel Dayrit
> 3 dayAs expected of a Noctua, this an amazing quiet fan. I used it to replace an existing fan on an eGPU unit and its so much more quiet now. While it isnt the cheapest option (and not the prettiest if you have an transparent side panel, this is one quality fan.
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Andrew Bradt
07-06-2025absolutely silent.all you hear is the wind blowing from it.
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Damien Hagenes
Greater than one weekI didnt understand how you could make a simple PC fan better. But boy this fan is amazingly quiet and just super high quality. We use this fan to run 24-7 and so far it seems fantastic - approx 1 month. I also like the 5 year warranty!! I mean who does that these days??
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Joel T. Archibald II
> 3 dayEverything they make is fantastic
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Gregory A
Greater than one weekThese fans exceed expectations. I purchased them to make my home file server quieter. They are nearly silent and push a ton of air. Will buy again in the future.
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Dan Tech Man
> 3 dayNot much to say. Noctua makes the best fans on the market. Good CFM. Low noise. Insanely long Lifetime.
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Robert M. Hicks
> 3 dayVery good value
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 ULN version provides super-slow 1400/1100rpm speed settings for ultra-low-noise applications and highly noise sensitive users who demand near-silent operation. 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 |