• Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and an AAO frame, the NF-A4x10 5V PWM is a PWM enabled 5V variant of Noctua’s award-winning, premium quality quiet 40x10mm fan.
  • The custom designed NE-FD3 PWM IC that integrates Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearings guarantee superb running smoothness and excellent long-term stability.
  • Topped off with modular cabling, the OmniJoin Adaptor Set Adaptor Set and 6 years manufacturer’s warranty, the NF-A4x10 5V PWM is a premium choice for demanding 5V applications that require PWM control.

If you replace an existing 40mm fan with the NF-A4x10 5V PWM in devices such as storage or network solutions, it is usually best to use the screws
(or other mounting mechanism) used for the original fan.

eing a 5V fan, the NF-A4x10 5V PWM can not be run at 12V and will be damaged when used with typical 12V power sources such as PC mainboard fan headers.
When installing the NF-A4x10 5V PWM as a case fan, you can either use the supplied mounting screws or NA-AV3 silicone anti-vibration mounts.
For installing the fan using the NA-AV3 mounts, please first pull the F side through the fan’s mounting holes until pawl 2 is all the way through the hole


Award-winning NF-A14 design

Award-winning NF-A14 design
  Having received more than 100 awards and recommendations from the international press, Noctua's NF-A14 has become a proven premium choice for 140mm cooling needs.
  Its renowned efficiency has convinced tens of thousands of customers all over the world.

5V version

5V version
  5V fans are used in various devices and applications.
  With the included USB power adaptor cable and OmniJoin™ adaptor set, the NF-A14 5V is a proven premium solution that gives you full flexibility both for replacing existing 5V fans and for new, custom applications.

Flow Acceleration Channels

Flow Acceleration Channels
  The NF-A14 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.

 AAO frame

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.

Stepped Inlet Design

Stepped Inlet Design
  Noctua's Stepped Inlet Design adds turbulence to the influx in order to facilitate the transition from laminar flow to turbulent flow, which reduces tonal intake noise, improves flow attachment and increases suction capacity, especially in space-restricted environments.

Inner Surface Microstructures

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.

Integrated anti-vibration pads

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.

Custom-designed PWM IC with SCD

Custom-designed PWM IC with SCD
  Supporting fully automatic PWM speed control, the NF-A14 5V PWM uses Noctua's novel, custom-designed NE-FD3 PWM IC that integrates Smooth Commutation Drive (SCD) technology.
  By providing smoother torque impulses, SCD suppresses PWM switching noises and thus makes the fan quieter at low speeds.

Polarity protection

Polarity protection
  As many devices using 5V fans feature proprietary connectors, and documentation of the pin alignment may not be available, the fan features an integrated diode for polarity protection.
  This way, you're on the safe side if you accidentally connect it with reverse polarity.

SSO2 Bearing

SSO2 Bearing
  The NF-A14 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.

Metal bearing shell

Metal bearing shell
  In order to guarantee the highest possible degree of manufacturing precision, minimum tolerance and excellent long-term stability, the NF-A14 sports a CNC milled bearing shell made entirely from brass.

OmniJoin™ Adaptor Set

OmniJoin™ Adaptor Set
 Many devices featuring 5V fans use proprietary fan headers, so the NF-A14 5V comes with Noctua’s OmniJoin adaptor set. Just cut the original fan’s cable, fix it to the adaptor using the supplied 3M Scotchlok™ connectors and you can plug the NF-A14 5V to proprietary fan headers!

USB power adaptor cable

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!

Extensive cabling options

Extensive cabling options
  The fan's short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary.
  Both cables are fully sleeved.

6-year manufacturer’s warranty

6-year manufacturer’s warranty
  Noctua fans are renowned for their impeccable quality and outstanding longevity.
  Like all Noctua fans, the NF-A14 features an MTTF of more than 150.000 hours rating and comes with a full 6-year manufacturer's warranty.
Notes and warnings: Being a 5V fan, the NF-A4x10 5V PWM cannot be run at 12V and will be damaged when used with typical 12V power sources such as PC motherboard fan headers.

FAN Specification
Size: 40x40x10 mm
Mounting hole spacing: 32x32 mm
Connector & pin-configuration 4-pin PWM
Cable length: 20cm + 30cm NA-EC1 extension cable
Bearing: SSO2
Blade geometry
Frame technology AAO (Advanced Acoustic Optimisation)
Rotational speed (+/- 10%) 5000 RPM
Min. rotational speed (PWM, +/-20%) 1000 RPM
Acoustical noise 19,6 dB(A)
Static pressure 1,95 mm H₂O
Max. input power 0,35 W
Max. input current 0,07 A
Operating voltage 5 V
MTTF > 150.000 h
Scope of delivery:
  • 30cm extension cable
  • NA-AV3 anti-vibration mounts
  • USB power adaptor cable
  • OmniJoin adaptor set
  • Fan screws
Warranty: 6 years
  • Size: 40x40x10mm
  • Connector: 4-Pin
  • Dimension (HxWxD): 210 x 150 x 34mm
  • Weight: 180 g

Do not connect to a 12V output connector.
This fan is rated at 5V, so connecting it to a 12V connector will damage the fan.
Please note that fan connectors for general PC motherboards have 12V specifications.

Download date sheet PDF:

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Noctua NF-A4x10 5V PWM 40x10mm Premium Fan

  • Brand: Noctua
  • Product Code: NF-A4x10 5V PWM
  • Availability: In Stock
  • ¥1,973

  • Ex Tax: ¥1,794

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Tags: Noctua, CPU cooler, 40mm