Product: Noctua NF-A4x20 FLX 40mm 3pin ファン 20mm厚 冷却ファン ケースファン
Brand: Noctua
Color: ブラウン
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 FLX version provides 5000/4400/3700rpm speed settings via the supplied Low-Noise Adaptors and includes the 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. 

Size 40x40x20 mm 
Mounting hole spacing 32x32 mm 
Connector 3-pin 
Bearing SSO2 
Blade Geometry A-Series with Flow Acceleration Channels 
Frame Technology AAO (Advanced Acoustic Optimisation) 
Rotational Speed (+/- 10%) 5000 RPM 
Rotational Speed with L.N.A. (+/- 10%) 4400 RPM 
Rotational Speed with U.L.N.A. (+/- 10%) 3700 RPM 
Airflow 9,4 m³/h 
Airflow with L.N.A. 8,3 m³/h 
Airflow with U.L.N.A. 6,9 m³/h 
Acoustical Noise 14,9 dB(A) 
Acoustical Noise with L.N.A. 12,2 dB(A) 
Acoustical Noise with U.L.N.A. 8,5 dB(A) 
Static Pressure 2,26 mm H₂O 
Static Pressure with L.N.A. 1,75 mm H₂O 
Static Pressure with U.L.N.A. 1,23 mm H₂O 
Max. Input Power 0,6 W 
Max. Input Current 0,05 A 
Voltage 12 V 
MTTF > 150.000 h 
Scope of delivery Low-Noise Adaptor (L.N.A.) 、Ultra-Low-Noise Adaptor (U.L.N.A.) 、30cm extension cable 、OmniJoin adaptor set 、NA-AV3 anti-vibration mounts 、Fan screws 
Warranty 6 years
40x20mm size
Flow Acceleration Channels
AAO frame
Stepped Inlet Design

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