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Noctua NF-A9 5V, Premium Quiet Fan with USB Power Adaptor Cable, 3-Pin, 5V Version (92mm, Brown)

4.7 out of 5 stars 83 ratings

S$27.90
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About this item

  • Premium quiet fan, 92x92x25 mm, 5V, 3-pin Molex, 2000 RPM, 22.8 dB(A), >150,000 h MTTF
  • Award-winning 92x25mm A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
  • 5V 3-pin version (2000rpm) with polarity protection for 5V-based industrial applications or replacing 5V fans in various devices
  • USB power adaptor cable allows the fan to run on devices with USB host ports, power banks or USB power supplies such as those used by smartphones
  • Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connection to proprietary fan headers

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Noctua NF-A9 5V, Premium Quiet Fan with USB Power Adaptor Cable, 3-Pin, 5V Version (92mm, Brown)


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From the brand


NF-A9 5V header

The NF-A9 5V is a dedicated 5V version of Noctua’s award-winning, premium-quality NF-A9 92mm fan. Featuring an AAO (Advanced Acoustic Optimisation) standard frame and sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A9 is renowned for its superior performance and outstanding quietness of operation. Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearing ensure superb running smoothness and excellent long-term stability. Topped off with the included USB power adaptor cable and OmniJoin adaptor set, the NF-A9 5V is a premium choice for demanding 5V applications.

NF-A9 5V

5V version

5V fans are used in various devices and applications. With the included USB power adaptor cable and OmniJoin adaptor set, the NF-A9 5V is a proven premium solution that gives you full flexibility both for replacing existing 5V fans and for new, custom applications.

Please Note: Being a 5V fan, the NF-A9 5V cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.

Flow Acceleration Channels

SSO2 bearing

Integrated anti-vibration pads

USB power adaptor cable

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.

USB power adaptor cable

The fan includes a USB power adaptor cable that allows it to run on power banks, devices with USB host ports or USB power supplies such as those used for smartphones, giving you near endless possibilities for using the fan in your home, in your car or wherever a need for cooling occurs!

NF-A9 5V banner

Please Note:

Being a 5V fan, the NF-A9 5V cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.

NF-A9 PWM NF-A9 FLX NF-A9 5V PWM NF-A9 5V PWM NF-A9 PWM chromax.black.swap
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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Customer reviews

4.7 out of 5 stars
4.7 out of 5
83 global ratings
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4 star
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Top reviews from other countries

Baldfox
4.0 out of 5 stars High quality fan
Reviewed in the United Kingdom 🇬🇧 on 29 January 2021
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Adrian C
4.0 out of 5 stars Not as silent as hoped
Reviewed in the United Kingdom 🇬🇧 on 28 August 2019
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Amazon Customer
4.0 out of 5 stars Blowy
Reviewed in the United Kingdom 🇬🇧 on 4 November 2018
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Dumitru
5.0 out of 5 stars Good and efficient fan!
Reviewed in the United Kingdom 🇬🇧 on 4 December 2021
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mitch
1.0 out of 5 stars This shouldn't be advertised as quiet
Reviewed in the United Kingdom 🇬🇧 on 29 April 2021
Verified Purchase