Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)
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Matthew P.
> 3 dayInaudible in comparison to stock fan cryorig
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Joe A
> 3 dayMy Dell PC was getting hot playing some quasi graphic intensive games. The factory fans were just not cutting it, so after reading some reviews, I picked up one of these fans and installed it. The installation, overall, was very easy. I like the fact that they give you a splitter so that you can either add it as an additional fan or use your old fan as a secondary, which is what I did. It was harder to remove the factory fan than it was to install this one.
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Mike
Greater than one weekYes, these fans are a bit on the expensive side, but they are very quiet and move quite a bit of air. I bought a few of these and have never been disappointed. IMHO they are worth the price.
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richard l behrens
> 3 dayn/a
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James D. Holloway
Greater than one weekI put this in my Dell XPS 8930 and it incredibly quiet compared to the stock fan, I could not tell it was on and had to open the case to verify it was running and it was.
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Chris B
> 3 dayI purchased this fan as a rear exhaust fan for my desktop since the one I purchased didnt come with one, and it does the job very well. It doesnt move quite as much air as I would like, but its darn near silent so Im very happy with the purchase.
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FASTER220
> 3 dayBought these thinking high quality well or over priced fans must be good. I bought these to power by usb. After finding out they have barely have any flow I use a Silver stone 1500 watt psu to see if it was lack of power making them so lame. No change they barely make any flow. I spent over $30 for these little no flow useless fans. Guess what they are silent . They make no noise and barely push any air. Money wasted. I bought a $4 usb no name brand fan to replace the useless fans and they are same size. The only thing different is they flow so good they could probley could puss these fans of the table with air flow. I cant imagine who would depend on these to cool a cpu. No time to send back so Im beat out of $30 plus. Dont believe the hype. I would rather buy fans a quarter of the price that offer better performance.I use my computers 24/7 Over the years I think one went bad. out of 30.. I really feel bad for the guy that uses this to cool a cpu. Now these useless fans are somewhere in a box forgotten about.They just remind me of being robbed.
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Mrs. Rachel Renner DDS
> 3 dayQuiet and easy to install replacement. I was using this to replace a factory fan on an HP case that I was reusing for a Ryzen project. The only negative is the brown color if you are doing a beauty build with a glass/plexi sided case. The fan will never be seen so the brown color did not concern me for my use case. I would recommend and use again.
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koZmiZm
> 3 dayI love that Noctua components work great. I bought this along with a Noctua CPU cooler to replace all the cooling in my CPU. It is so quiet now and it is definitely exhausting the heat well. My computer runs perfectly. I love you Noctua! Money well spent. If you want quality, spend the little bit extra! If you must know, I have a 1700X and an MSI 2060 Super Ventus. I have one of the most pimped out Dell computers now!
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MB
> 3 dayVery quiet, this replaced an old 92mm fan on my CPU cooler in my HTPC. Im seriously considering swapping out the case fans with Noctua.
The NF-A9 is a highly optimised, premium quality quiet 92mm fan. Featuring Noctua’s AAO (Advanced Acoustic Optimisation) frame as well as sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A9 further improves the renowned quiet cooling performance of the award-winning NF-B9. 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 2000 to 1550rpm. 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-A9 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-A9 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-A9 PWM | NF-A9 FLX | NF-A9 5V PWM | NF-A9 5V | NF-A9 PWM chromax.black.swap | |
| Connector | 4-pin PWM | 3-pin | 4-pin PWM | 3-pin | 4-pin PWM |
| Voltage | 12V | 12V | 5V | 5V | 12V |
| RPM | Max: 2000 / Min: 400 | 1600 | Max: 2000 / Min: 400 | 2000 | Max: 2000 / Min: 400 |
| RPM with L.N.A. | 1550 | 1250 | - | - | - |
| RPM with U.L.N.A. | - | 1050 | - | - | - |
| Acoustical Noise | 22,8 dB(A) | 17,1 dB(A) | 22,8 dB(A) | 22,8 dB(A) | 22,8 dB(A) |
| Acoustical Noise with L.N.A. | 16,3 dB(A) | 11,6 dB(A) | - | - | - |
| Acoustical Noise with U.L.N.A. | - | 8,4 dB(A) | - | - | - |
| Size | 92x92x25 mm | 92x92x25 mm | 92x92x25 mm | 92x92x25 mm | 92x92x25 mm |
| Colour | Brown & Beige | Brown & Beige | Brown & Beige | Brown & Beige | Black with swappable coloured anti-vibration pads |