Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)
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Bob Belansen
> 3 dayI bought this to replace the stock cpu fan in an old dell workstation with an intel xeon. I have it running on full blast all the time and barely hear it. It keeps my cpu temperature under 60 degrees under a 75 watt load. The downside if youre considering using it in a dell computer is the connectors dont match up so you need to buy a dongle (like a smart person would) or use jumper wires (like I do).
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C. Ortiz
> 3 dayPerfect for push-pull on a Noctua NH-U9S
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Brandon
> 3 dayI 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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~Jjong
Greater than one weekProduct as described, I used noctua fans to cool my HP pavilion gaming tg01 series and does it job well.
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Nankura
> 3 daySolid fan to upgrade noctua low profile cpu cooler
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RalphM
> 3 dayI use this as an exhaust fan in a home theater equipment cabinet. Very quiet and moves a lot of air.
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Joe
> 3 dayWorks great! Came with lots of cable choices! Not as quiet as I had hoped.
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David Skinner
> 3 dayNoctua is a first=class act with everything you need to installation and connection.
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The Exacting Consumer
> 3 dayI used one of these in the back of my Sliger Cerberus SFF case to exhaust hot air in a small mounting space. Whisper quiet unless running at max RPM. The fan comes with rubber pegs that can be used for a vibration noise-free install, standard screws are also included. The standard Noctua color scheme is a love/ hate affair, more so if you have case windows for showcasing, but these are fantastic quality fans.
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Everett
> 3 dayI understand why these fans cost what they do. Theyre absolutely silent running at 30% and lower, and still extremely quiet and pleasant sounding at higher RPMs (nice low pitch, no whining, and still very quiet). At 30% and lower, I cannot hear anything. I can feel the air hitting my eardrum if I stick my head in the case, but thats it. These fans are impeccable.
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 |