Noctua NF-A8 FLX, Premium Quiet Fan, 3-Pin (80mm, Brown)
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Smart Phone User
> 3 dayQuiet, as advertised. Works very well to cool my case.
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Robert E. Malone
> 3 dayI moved my desktop to my desk top and omg was it ever loud with its original fan. Bought this and swapped it in easily. No regrets at all. Nice and quiet.
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Breanne Rogahn I
> 3 dayI replaced the fan in a Behringer NX1000D with this unit. Fit is excellent and it runs silently now. I run the amp 8 hrs a day and have not had any overheating issues. It’s a little more expensive than other options but I’m satisfied.
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Other Horses
> 3 dayQuiet with excellent airflow. Ive used about 15 of these (with 3-pin to mini 2-pin GPU fan adapter cables, purchased elsewhere) to replace the stock fans in cheap JBOD/RAID enclosures. The oldest have been running 24/7 in a hot cabinet for about 4 years [UPDATE: 6 years!], and are still going strong.
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Christopher M. Schaub
> 3 dayIts Noctua. You know its going to be a great product. Just buy it.
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Chem Guy
13-06-2025Wow, so quiet. Comes with fasteners needed for installation.
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Bardo
> 3 dayI have a Silverstone FT03 tower PC.
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got_cats
Greater than one weekInstalled in a Synology DS1515+. I expected them to be quieter than the factory installed fans. However, from the start, I noticed little if any difference in noise level between these Noctua fans and the original fans. Now, after just a few months, these fans are make a buzzing sound. Going to reinstall the original fans.
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M2AZ
> 3 dayFan looks and feels like good quality. Included all the screws and parts so installing it was straightforward.
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Birdmonkey
> 3 dayI was expecting it to be quieter based on all the reviews. I can still hear it clearly running all the time. Its not silent at all. However, the quality seems to be pretty good so I guess I cant complain too much. Im going to look for a quieter fan. Just because you pay more for something doesnt mean that youre for sure getting a better product as is the case with this. I only recommend it if you still want to hear a fan going in your computer, amp, or whatever youre installing it in.
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 FLX version provides 2000/1650/1200rpm speed settings via the supplied Low-Noise Adaptors in order to provide full flexibility in fine-tuning the fan for maximum ventilation performance or 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 |