Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)
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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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AtHome Girl
> 3 dayThe fan works fine. It replaced an existing fan. The only issue is when the computer is started it is looking for the old fan and we have to tell it theres a different fan before the computer will start. It is just inconvenient.
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Gordon Fay
> 3 dayI have installed Noctua fans from 1 across to the giant AMD 2700 heat sink fan, and this, the 92mm one. All are silent as a tomb while moving at least, if not more, air than what they replaced. Their cocoa and almond coloring is very attractive even though Ive always hidden them in the component.
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Sam
> 3 dayQuiet as usual, but the fan frame is warped, not planar. Had to shim it in order to sit tight on the mounting face. This is what happens when legends are formed: quality goes down. Shame.
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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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Chicago Joe
> 3 dayI have a small, 6-can thermoelectric (Peltier) cooler fridge and the original fan was dying on it. I found this as a replacement. It has the same physical dimensions, a greater CFM flow rate, pulls less current and is quieter than the original fan was. A replacement fridge would have cost from ~$40 to $80 and replacing the fan cost $16.95 so, pretty good deal. It came with a 4-pin extension cable. It has rubber mounts at the corners which, Im guessing, help with vibration (noise). Looks exactly like the picture and seems to be a quality piece of gear.
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MOHAMMAD S ISLAM
> 3 dayVery silent fan my son loves it his computer is not making any nose I recommend
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MB
> 3 dayWow, this is so quiet that when I installed it to replace my foxconn 92mm exhaust fan (that was too loud and whiney) at first I thought it wasnt working. I can only hear it a tiny bit in the dead of night. It even lowered my cpu temp by 1 degree at heavy load. Im also using a Noctua NF-A8 PWM case fan on my Ryzen 3600 cpu so my HP Pavillion PC is now nearly as silent as my laptop (however my cpu temps went up a few degrees under heavy load with the lower powered Noctua 80mm fan so no overclocking with my current rig). Noctua fans are definitely worth the money for people who need a quiet computer.
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E. Robinson
> 3 dayI ordered this fan for my old HP Compaq 8200 desktop knowing it was not an exact replacement.
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RonRosenzweig
02-06-2025No noise, I have to look to see if it is running. Highly recommended!
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 |