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Noctua NF-A4X20 PWM

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Noctua NF-A4X20 PWM
Standardmagnetic bearingquiet
Main specs
Featuresfor case
Product typefan
Fan
Number of fans1
Fan size40 mm
Fan thickness20 mm
Bearingmagnetic centring
Min. RPM1200 rpm
Max. RPM5000 rpm
Speed controllerauto (PWM)
Max. air flow5.52 CFM
Static pressure2.26 mm H2O
Noise level15 dB
Power source4-pin
General
Mount typebolts
Dimensions40x40x20 mm
Official Websitenoctua.at
Added to E-CatalogFebruary 2021
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
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Noctua NF-A4x20 PWM 40mm Chipset Fan

Featuring advanced aerodynamic design measures such as Flow Acceleration Channels and Noctua’s AAO frame, the NF-A4x20 is a h... moreighly optimised, premium-quality quiet fan in size 40x20mm. The PWM version sports Noctua’s custom-designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise Adaptor as well as an OmniJoin™ Adaptor Set for easy connection to proprietary fan headers. Its superb running smoothness, reference-class SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands. 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. 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. 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. Custom-designed PWM IC with SCD Supporting fully automatic PWM speed control, the fan uses Noctua's custom-designed NE-FD1 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. Low-Noise Adaptor The NF-A4x20 PWM is supplied with a (L.N.A.) that reduces the maximum fan speed from 5000 to 4400rpm. The L.N.A. can be used either to run the fan at a fixed speed of 4400rpm or to cap the maximum speed when
CCLonline.com
Delivery: to United Kingdom
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Noctua NF-A4x20 40mm PWM Fan

Scan.co.uk
Delivery: to United Kingdom
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Noctua NF-A4X20-PWM

NOCTUA NF-A4X20-PWM: Premium Quiet Cooling for Compact SpacesElevate your cooling solution with the Noctua NF-A4X20-PWM, a hi... moreghly optimized, premium-quality quiet fan designed for the most demanding 40mm applications. This fan is the ideal upgrade for servers, network hardware, 3D printers, and other compact devices where both high performance and near-silent operation are critical. Its 20mm depth, compared to standard 10mm fans, allows for superior static pressure and airflow, making it exceptionally effective when used with heatsinks or in environments with high impedance.Engineered for excellence, the NF-A4X20-PWM incorporates advanced aerodynamic design principles to achieve an impressive performance-to-noise ratio. Its sophisticated blade and frame structure work in harmony to improve airflow efficiency while minimizing turbulence and noise. Experience powerful cooling with a maximum airflow of 9.4 m³/h and a formidable static pressure of 2.26 mmH2O, ensuring that even the most constrained spaces receive adequate ventilation.Full dynamic control is at your fingertips thanks to its 4-pin PWM connector. This allows your motherboard to automatically adjust the fan´s speed from a virtually silent 1200 RPM during idle periods to a robust 5000 RPM under heavy load. For users prioritizing absolute silence, the included Low-Noise Adaptor (LNA) can cap the speed at 4400 RPM, reducing the noise level to an almost inaudible 12.2 dB. Built for unwavering reliability, this fan is a long-term investment in stable and quiet performance, backed by an exceptional mean time to failure (MTTF) of 150.000 hours. The Noctua NF-A4X20-PWM is the definitive choice for professionals and enthusiasts who refuse to compromise on cooling performance and acoustic comfort in their compact builds. Technical SpecificationsSpecifications:Weight and measurements:- Depth: 40mm- Width: 40mm- Height: 20mmPower control:- Voltage: 5 - 12V- Maximum current: 0.05 A- Power supply: 0.6WPackaging content:- Cables included: FanOther features:- Mounting Hole Pattern (H x V): 32x32mm- Mean time to failure (MTTF): 150000 hDesign:- Fan connector: 4 pinPerformance:- Rooms: Computer case- Rotation speed with LNA (max): 4400 RPM- Air flow with LNA (max.): 8.3 m³/h- Type: Fan- Fan diameter: 4cm- Rotation speed (min): 1200 RPM- Rotating speed (max): 5000 RPM- Noise level (high speed): 14.9 dB- Maximum air pressure: 2.26 mmH2O- Air flow: 9.4 m³/h- Minimum air pressure: 1.75 mmH2O- Noise level with LNA (max.): 12.2 dB
Tradeinn.com
Delivery: in United Kingdom
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£15.49
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Noctua NF-A4x20 PWM Computer case Fan

Featuring advanced aerodynamic design measures such as FlowAcceleration Channels and NoctuaÂ’s AAO frame, the NF-A... more4x20 is ahighly...
OnBuy.com
Delivery: in United Kingdom
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Noctua NF-A4x20 PWM Computer case Fan 4 cm Beige. Brown

Noctua NF-A4x20 PWM Computer case Fan 4 cm Beige. Brown Featuring advanced aerodynamic design measures such as Flow Accelerat... moreion Channels and Noctua’s AAO frame. the NF-A4x20 is a highly optimised. premium-quality quiet fan in size 40x20mm. The PWM version sports Noctua’s custom-designed NE-FD1 IC for fully automatic speed control via 4-pin fan headers and comes with a Low-Noise Adaptor as well as an OmniJoin™ Adaptor Set for easy connection to proprietary fan headers. Its superb running smoothness. reference-class SSO2 bearing and Noctua’s trusted premium quality make it an elite choice for the highest demands.40x20mm sizeCompared 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.Flow Acceleration ChannelsThe 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 FrameNoctua'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 DesignNoctua'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 MicrostructuresWith 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 PadsIntegrated 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.SSO2 bearingThe 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.Custom-designed PWM IC with SCDSupporting fully automatic PWM speed control. the fan uses Noctua's custom-designed NE-FD1 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.Low-Noise AdaptorThe NF-A4x20 PWM is supplied with a (L.N.A.) that reduces the maximum fan speed from 5000 to 4400rpm. The L.N.A. can be used either to run the fan at a fixed speed of 4400rpm or to cap the maximum speed
Pcnova.co.uk
Delivery: in United Kingdom
Report
£37.97
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Noctua NF-A4x20 PWM Computer case Fan 4 cm Beige. Brown

Noctua NF-A4x20 PWM Computer case Fan 4 cm Beige. Brown
LaptopHub.uk
Delivery: in United Kingdom
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£37.97
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