Scan code: LN82073 Manufacturer code: NF-A4x20 5V

Noctua NF-A4x20 5V 40mm x 20mm 3-pin Fan

40mm Noctua NF-A4x20 5V 40mm x 20mm 3-pin Fan

Thumbnail 1 : Noctua NF-A4x20 5V 40mm x 20mm 3-pin Fan Thumbnail 2 : Noctua NF-A4x20 5V 40mm x 20mm 3-pin Fan Thumbnail 3 : Noctua NF-A4x20 5V 40mm x 20mm 3-pin Fan Thumbnail 4 : Noctua NF-A4x20 5V 40mm x 20mm 3-pin Fan
Scan code: LN82073 Manufacturer code: NF-A4x20 5V
£13.49
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Product Overview Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A4x20 5V is a dedicated 5V version of Noctua’s highly optimised, premium quality quiet 40x20mm fan. 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 and 6 years manufacturer’s warranty, the NF-A4x20 5V is a premium choice for demanding 5V applications.

40x20mm size
Compared to Noctua’s award-winning NF-A4x10, the NF-A4x20 is twice as thick, which allows for increased static pressure performance and makes the NF-A4x20 ideal for demanding applications with high flow resistance.

5V version
Many devices such as network or storage solutions use 5-volt 40mm fans. With the same operating voltage and the included OmniJoin™ Adaptor Set that makes it compatible with proprietary fan headers, the NF-A4x20 5V is ideal for replacing noisy or broken 5V 40mm fans.

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.

Flow Acceleration Channels
The NF-A4x20 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
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
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
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 made from extra-soft silicone minimise the transmission of minute vibrations while maintaining full compatibility with all standard mounting systems and fan clips used on heatsinks.

OmniJoin™ adaptor set
Many devices featuring 40mm fans use proprietary fan headers, so the NF-A4x20 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-A4x20 to proprietary fan headers!

SSO2 bearing
The NF-A4x20 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.#

6-year manufacturer’s warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A4x20 features an MTTF of more than 150.000 hours rating and comes with a full 6-year manufacturer’s warranty. Features • Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance
• 40x20mm size ideal for 1U applications or replacing fans in network and storage equipment (routers, switches, NAS etc.) or other devices such as DVRs
• 5V 4-pin version (5000rpm maximum speed) for 5V applications
• Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers
• Trusted Noctua quality backed up with 6-year manufacturer's warranty
Specifications
Pack Information
Edition Noctua NF-A4x20
Pack Type  
Includes  
Individual Fan Specifications
Fan Diameter 40mm
Fan Depth 20 mm
Fan Speed 5000 rpm
Fan Blades  
PWM No
Fan Specialization Static Pressure
Airflow 5.5 CFM
Air Pressure 2.26 mm H²O
Sound Level (dBA) 14.9 dBA
Sound Level (Sone)  
Motor Type  
Bearing Type SSO2
Manual Speed Controller No
Material  
Fan Colour Beige/Brown
LED No
LED Colour  
MTBF > 150,000 Hours
Fan Fixing  
Cable length 40 mm
Connectors 1 x 3-pin
Additional Information
Scan Code LN82073
Model Number NF-A4x20 5V
GTIN 9010018100136
Warranty

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

Details
Duration:
60 months
Type:
Return to base
DOA Period:
7 days
RTB Period:
60 months
Manufacturer Contact Details
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Noctua NF-A4x20 5V 40mm x 20mm 3-pin Fan
Noctua NF-A4x20 5V 40mm x 20mm 3-pin Fan