1pcs  Fanuc system cooling fan DC24V 0.36A  4715KL-05W-B39 12038 120*120*38mm
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Noctua NF-A9 PWM, Premium Quiet Fan, 4-Pin (92mm, Brown)

  • PWM
  • FLX
  • 5V PWM
  • 5V
  • chromax
See more
  • Premium quiet fan, 92x92x25 mm, 12V, 4-pin PWM, max. 2000 RPM, max. 22.8 dB(A), >150,000 h MTTF
  • Award-winning 92x25mm A-series fan with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • Ideal for 9cm CPU coolers (e.g. Noctua NH-U9(S) & NH-D9L series), compact PC cases (HTPC, ITX, Small Form Factor), replacement fan for NAS and other devices, etc.
  • 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, broad 400-2000rpm speed range (1550rpm max. with supplied Low-Noise Adaptor)
  • Includes anti-vibration mounts, fan screws, Low-Noise Adaptor, extension cable and y-cable for running two PWM fans on the same header
+
+
Overview
Specs
Reviews
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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.


 

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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 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.  
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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.  
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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.  
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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

 

 

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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Products
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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