Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)
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John Stacey
Greater than one weekIve installed three of these fans now on my desktop PC and I have to say they are incredibly high quality across the board. The packaging, the build quality, the included spare parts, the ease of installation, and the cooling effectiveness are all top notch. I installed one as an exhaust fan on the back of my PC and two on my CPU cooler (one pulling and one pushing air) and theyve all worked incredibly well.
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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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RevSistemsTec
> 3 dayVery Good Quality Computer fan.
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Rich
> 3 dayVery quiet even when idling, as a rear case fan, at about 870 - 900 rpm and lowered case temp.
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Ethan Carroll
Greater than one weekThe best. Super quiet, ez to install, high quality material, effecient. Nothing to complain, if you are willing to spend a little bit extra money to get a better fan, just do it.
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Actual Customer
> 3 daySuper quiet and efficient
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R.P.
> 3 dayIt is very quiet and easy to install.
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SC
> 3 dayThis product is very well made and includes all the parts I would need. I used the silicone mounts to install the fan on my desktop computer, and the extension cable to reach the PWM connector on the other end of the motherboard. During the installation, I quickly realized that those silicone anti-vibration pads must be removed in order to use silicone mounts for installation. For some unknown reason I had to restart twice to have the system up and running and recognize the fan in BIOS settings. Now the fan is running smoothly and so quietly in my computer, I dont even notice its running.
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NR
Greater than one weekIm using this on a mini itx (K39 case) with some overclocking, replacing the original Noctua LH 9i fan. Improved the heat dissipation by a fair amount and its so quiet even at max. speeds. The only thing thats loud is the graphics card fan . Go for it if youre in the market looking for one.
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Drake Henderson
> 3 dayBought this as an upgrade from the slim fan on my Nh l9i. Works ways better and is quiet. Only complaint is it didnt go on the cooler very easy. But Im sure it wasnt suppose to so thats on me. Great fan from 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 |