Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)
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Christopher Rippy
> 24 hourGreat as always!
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John C
> 24 hourI used this fan to mod a heatsink that was making a strange ticking noise. So far so good, noise and performance are as expected.
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JE
> 24 hourGood packaging and presentation. Fans install easily with vibration-compensators (rubber plugs). Great build quality and plenty of accessories. I replaced the exhaust fan and added a second fan for push-pull configuration. Highly recommended. BTW I know that the case looks close to the back wall but its actually 6 inches away.
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David R.
> 24 hourNoctua fans have a distinct reputation within the DIY community... and for good reason! 92mm fans are not always known as being the quietest, but this one is definitely an exception. I decided to replace the 14mm thin fan that comes with the
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Darwindan
> 24 hourWell made fan, quality materials. Moves a good amount of air and pretty quiet. Can be used as case ir cpu fan. Dont care for the color like other reviewers, but color is secondary to quality. Noctua makes superior fans, period.
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Brandon Marburger
> 24 hourGood quality and queit
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Saerbrehach
> 24 hourSo far theyre the best fans Ive ever seen. Used them to replace dead, seized fans on a cooler master d92 and theyre quieter and move more air than the original ones.
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Benjamin
> 24 hourImpressed with the great quality, real premium materials, design, packed, perfomance and nothing of noise. Now ill change all to noctua.
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Rain
> 24 hourI love noctua fans.
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Knice
> 24 hourQuiet and reliable.
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 |