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Noctua NF-A20 5V PWM Fan - 200mm
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Noctua NF-A20 5V PWM Fan - 200mm

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Product Description

Noctua NF-A20 5V PWM Fan - 200mm

The NF-A20 5V PWM is a PWM-enabled 5V variant of Noctua’s award-winning, premium-quality NF-A20 200mm fan. Featuring an AAO (Advanced Acoustic Optimisation) standard frame and sophisticated aerodynamic design measures such as Flow Acceleration Channels, the NF-A20 is renowned for its superior performance and outstanding quietness of operation. Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearing guarantee superb running smoothness and excellent long-term stability. Topped off with the included USB power adaptor cable, OmniJoin™ adaptor set and 6-year manufacturer’s warranty, the NF-A20 5V PWM is a premium choice for demanding 5V applications that require PWM control.

5V PWM version
5V PWM fans are used in various devices and applications. With the included USB power adaptor cable and OmniJoin™ adaptor set, the NF-A20 5V PWM is a proven premium solution that gives you full flexibility both for replacing existing 5V PWM fans and for new, custom applications that require PWM speed control.

Flow Acceleration Channels
The NF-A20 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 screws and other mounting systems.

Custom-designed PWM IC with SCD
Supporting fully automatic PWM speed control, the fan uses Noctua's 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
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
The NF-A20 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.

OmniJoin™ adaptor set
Many devices featuring 5V fans use proprietary fan headers, so the NF-A20 PWM 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-A20 PWM 5V to proprietary fan headers!

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
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
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-A20 features an MTTF of more than 150.000 hours rating and comes with a full 6-year manufacturer’s warranty.

Performance
Fan connector 4-pin
Pulse-width modulation (PWM) support Yes
Rotational speed (min) 350 RPM
Rotational speed (max) 800 RPM
Noise level with LNA (max) 18.1 dB
Bearing type Self-stabilising oil-pressure bearing (SSO2)
Mean time to failure (MTTF) 150000 h
Type Fan
Suitable for Computer case
Fan diameter 20 cm
Supported processor sockets Not supported
Compatible processor series Not supported
Maximum air pressure 1.08 mmH2O
Airflow 146.9 m³/h
Number of fans 1 fan(s)
Number of fan blades 9


Design
Colour of product Beige, Red
Technical details
Type Fan
Suitable for Computer case
Fan diameter 20 cm
Supported processor sockets Not supported
Compatible processor series Not supported
Maximum air pressure 1.08 mmH2O
Airflow 146.9 m³/h
Number of fans 1 fan(s)
Fan connector 4-pin


Power
Voltage 5
Power supply 0.85 W
Maximum current 0.17 A


Colour
Colour of product Beige, Red


Weight & dimensions
Fan dimensions (W x D x H) 200 x 200 x 30 mm
Package depth 38 mm
Package width 285 mm
Package height 285 mm
Package weight 721 g

Packaging content
Screws included Yes
Cables included Fan

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Noctua NF-A20 5V PWM Fan - 200mm
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