Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)

(1998 Reviews)

Price
$11.37

Quantity
(10000 available )

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317 Ratings
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Reviews
  • Connor

    > 3 day

    As is mostly the case with Noctua they designed a good fan here. Does exactly what I need for its size and is very quiet at the same time. Far quieter at full speed than many others. Not for the faint of wallet though.

  • DC

    > 3 day

    This fan works well and was easy to install. Havent had any problems and run really quiet. Would recommend.

  • SirXziane

    > 3 day

    Quality, quiet, and performance. The accessories make it a bargain and the packaging is almost art.

  • RonRosenzweig

    > 3 day

    No noise, I have to look to see if it is running. Highly recommended!

  • Justin

    Greater than one week

    Whisper quiet, used inside server in my bedroom. Loudest thing now is my enterprise hard drive. Server runs day and night without fail.

  • Victor

    > 3 day

    Es muy silencioso, queda muy bien como segundo ventilador del disipador.

  • Letha Emmerich

    > 3 day

    These fans are so quiet and install very easy and really cool your computer down with no effort.

  • Rufus B. Saye

    > 3 day

    This review is for both the 92mm and 80mm versions of this model, 4-wire units with speed controlled by the motherboard.

  • Paul

    > 3 day

    Added this fan to my u9s cpu cooler more for looks than for extra cooling but it did provide a few clicks lower in the cooling department. Works great and is silent.

  • Stewart M.

    > 3 day

    Easily dropped the cpu temp by 10-15 degrees C, during stress testing. The only issue I had is the proprietary motherboard of my Dell did not accept the studs needed for the installation. I ended up going to Home Depot to get four 3.0m X 16 screws and using the black spacers supplied with the fan.

NF-A9 PWM HeaderNF-A9 PWM Header

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.

NF-A9NF-A9

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.

NF-A9 Flow Acceleration ChannelsNF-A9 Flow Acceleration Channels

SSO2SSO2

NF-A9 AVPNF-A9 AVP

NF-A9 PWM scopeNF-A9 PWM scope

Flow Acceleration Channels

The 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 bearing

The 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 pads

Integrated 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

  • NA-RC7 Low-Noise Adaptor (L.N.A)
  • NA-YC1 4-pin PWM y-cable
  • NA-EC1 30cm extension cable
  • 4x NA-AV1 anti-vibration mounts
  • Fan screws
NF-A9 bannerNF-A9 banner

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.

NF-A9 PWM table NF-A9 FLX table NF-A9 5V table NF-A9 5V table NF-A9 PWM chromax.black.swap table
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

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