Noctua NF-A4x20 PWM

Featuring advanced aerodynamic design measures such as Flow Acceleration 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. Size40x40x20 mm Mounting hole spacing32x32 mm Connector & pin-configuration4-pin PWM Cable length20cm + 30cm NA-EC1 extension cable BearingSSO2 Blade geometryA-Series with Flow Acceleration Channels Frame technologyAAO (Advanced Acoustic Optimisation) Rotational speed (+/- 10%)5000 RPM Rotational speed with L.N.A. (+/- 10%)4400 RPM Min. rotational speed (PWM, +/-20%)1200 RPM Airflow9,4 m³/h Airflow with L.N.A.8,3 m³/h Acoustical noise14,9 dB(A) Acoustical noise with L.N.A.12,2 dB(A) Static pressure2,26 mm H₂O Static pressure with L.N.A.1,75 mm H₂O Max. input power0,6 W Max. input current0,05 A Operating voltage12 V Voltage PWM signal5 V MTTF> 150.000 h Ingår: Low-Noise Adaptor (L.N.A.) 4-pin y-cable 30cm extension cable OmniJoin™ adaptor set NA-AV3 anti-vibration mounts Fan screws Warranty6 years