Noctua NF A4x20 PWM, Premium Quiet Fan, 4 Pin (40x20mm, Brown)

TechInn

Noctua Nf-a4x20-pwm Fan 40 Cm. NOCTUA NF-A4X20-PWM: Premium Quiet Cooling for Compact SpacesElevate your cooling solution with the Noctua NF-A4X20-PWM, a highly 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 Techinn

Amazon

Premium quiet fan, 40x40x20 mm, 12V, 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 1U servers or replacing fans in network and storage equipment (routers, switches, NAS etc.) or other devices such as DVRs 4-pin PWM version for automatic speed control via 4-pin PWM fan headers, 5000rpm maximum speed (4400rpm with supplied Low-Noise Adaptor) Includes anti-vibration mounts, fan screws, extension cable, y-cable and OmniJoin adaptor set for connecting the fan to proprietary fan headers

123-3D UK

Is your 3D printer, computer or other device making too much noise? This Noctua fan offers the solution: it ensures that your device works whisper-quiet. The aerodynamic fans are popular for their robust, stable and above all quiet character. They ensure optimum airflow. The grooves in the AAO frame allow air to be routed as efficiently as possible for the best cooling results. The integrated shock absorbers and SSO2 bearings reduce the noise level and ensure stability.This fan has a size of 40mm x 40mm x 20mm. The PWM variant has a variable rotation speed. With this fan you benefit from a six-year warranty.