Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)
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Stevie Wonder
> 3 dayGreat fan and it’s quiet too. This brand has always been reliable (better bearings), efficient at cooling and quieter than the competition, and reasonably priced.
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Brandon
Greater than one weekI have two of these now one for the rear of my tower and other one I bought was 120mm for my cpu, for the money you pay for it’s definitely worth it , comes with everything you need to install it and the best part is it comes with a 6yr warranty which is awesome
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Mark
> 3 dayBought this to replace the rear exhaust fan, hardly made a difference, not worth it, especially for the price. After, I moved this as a secondary fan for a push pull configuration on my Noctua NH-U9S CPU cooler and it does a good job there, temps at idle were not much difference, but under load it ran cooler than before, under 60 C consistent at 100% load for prolonged time of 30 min to 1 hour interval tasks.
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DAMills
> 3 dayThis review is of the Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown). From a quality standpoint, they thought of everything - it is ultra high quality in construction. Every little detail to reduce noise has been thought of, from anti-vibration considerations to decibel output. I didnt know squat about Noctua, but its clear to me that they focus on building quality products.
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chris
> 3 dayPackage delivered ontime well packaged, this is the second fan assembley for the Nh-D9L, second fan assembley NF-A9 Does not come with the mounting clips, about 72F in computer room and seeing temps in everquest2 with the duel fan setup at about 140F this is a DDR4 I9 system not overclocked with basically a light load.
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F Volker
> 3 dayIm using this as the 2nd fan in a push-pull configuration with a Noctua U9S cpu cooler. The extra fan drops the idle temp by about 2 deg C and the full load temp by about 4 deg C. Well worth the minimal effort.
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TTexas
> 3 daybought on Jan 22, 2023 and its only March 22, 2023. Lasted 2 months only. Wasted money.
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Dallers
Greater than one weekI had always heard noctua was a premium brand because of how good it is. But i never really understood til I actually bought one. The case i put this fan in has no glass panels so I don’t really care about the color scheme but this fan is 1000x better than the stock fans my PC came with; pushes more air out while being quieter, and all the extra stuff this fan comes with is really helpful instead of having to buy multiple things
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CollegeGuy15
> 3 dayEasy to Install and plugged right in (bit tough to plug the cable in) to my Inspiron 5675. Used it as a front intake fan to help my PC cool. Had to take off the GPU shield then install the fan in the front fan slot. Could only secure 3 out of 4 the pins in the fan but its sturdy as could be. Highly recommend!
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David Toro
> 3 dayNot crazy about the brown color, but since this is used for a GPU water-cooled setup, its out of the way. This fan just works and works well. Its silent and does its job. I have nothing negative to say.
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 |