Fan Noctua NF-A4X20 5V PWM

All specifications

Specifications NF-A4X20 5V PWM

Main specs
Features	for case
Product type	fan


Fan
Number of fans	1
Fan size	40 mm
Fan thickness	20 mm
Bearing	hydrodynamic / SSO2 /
Min. RPM	1100 rpm
Max. RPM	5000 rpm
Speed controller	auto (PWM)
Max. air flow	5.52 CFM
Static pressure	2.26 mm H2O
Noise level	15 dB

General
Power source	4-pin
Mount type	bolts
Dimensions	40x40x20 mm
Official Website	noctua.at
Added to E-Catalog	february 2021

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Information in model description is for reference purposes.
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	Noctua NF-A4x20 5V PWM Premium Quiet Fan 4-Pin 5V Version 40x20mm Brown NF Premium quiet fan, 40x40x20 mm, 5V, 4-pin PWM, max. 5000 RPM, max. 14.9 dB(A), >150,000 h MTTF Award-winning A-series design with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior quiet cooling performance 40x20mm size ideal for NVIDIA Jetson Nano, 1U applications or replacing fans in network and storage equipment (... morerouters, switches, NAS etc.) or other devices such as DVRs 5V 4-pin PWM version (5000rpm maximum speed) for 5V applications with PWM control Includes anti-vibration mounts, fan screws, extension cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers Amazon.co.uk Delivery: to United Kingdom Report	£13.95 Buy in shop

	Noctua NF-A4x20 5V PWM 40mm Chipset Fan Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and an AAO frame, the NF-A4x20 5V PWM is a PWM enabled 5V variant of Noctua’s highly optimised, premium quality quiet 40x20mm fan. The custom designed NE-FD3 PWM IC that integrates Smooth Commutation Drive technology and Noctua’s reference class SSO2 bearings guarante... moree 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 PWM is a premium choice for demanding 5V applications that require PWM control. 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 PWM version Many devices such as network or storage solutions use 5 volt 40mm fans with PWM speed control. With the same operating voltage, PWM support and the included OmniJoin™ adaptor set that makes it compatible with proprietary fan headers, the NF-A4x20 5V PWM is ideal for replacing noisy or broken 5V 40mm fans with PWM. 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 CCLonline.com Delivery: to United Kingdom Report	£18.30 Buy in shop

	Noctua Noctua NF-A4x20 5V PWM Case Fan / 4-pin / Max. Noise Emission 14.9 dB / Volume Flow 9.4 m³/h / Dimensions (WxHxD) 40 x 40 x 20 mm Idealo.co.uk Delivery: in United Kingdom Report	£13.95 Buy in shop

Noctua NF-A4X20 5V PWM

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