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Noctua 40mm 5V PWM Fan (NF-A4X20-5V-PWM)

Compact 40×40×20 mm fan with 4‑pin PWM (5 V). 5000 RPM (1100 RPM @20% PWM), 9.4 m³/h airflow, 14.9 dB(A) noise, 2.26 mm H₂O pressure. SSO2 bearing, AAO frame, A‑Series blades, 0.42 W typical power, >150 k h MTTF. Includes y‑cable, 30 cm extension, adaptor set and anti‑vibration mounts.

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SPECIFICATIONS:

Size	40x40x20 mm
Mounting hole spacing	32x32 mm
Connector & pin-configuration	4-pin PWM
Cable length	20cm + 30cm NA-EC1 extension cable
Bearing	SSO2
Blade geometry	A-Series with Flow Acceleration Channels
Frame technology	AAO (Advanced Acoustic Optimisation)
Rotational speed (+/- 10%)	5000 RPM
Min. rotational speed @ 20% PWM (+/-20%)	1100 RPM
Airflow	9,4 m/h
Acoustical noise	14,9 dB(A)
Static pressure	2,26 mm H₂O
Input power (typical)	0,42 W
Input power (max.)	0,5 W
Input current (typical)	0,08 A
Max. input current	0,1 A
Operating voltage	5 V
Voltage PWM signal	5 V
MTTF	> 150.000 h
Scope of delivery	4-pin y-cable 30cm extension cable OmniJoin™ adaptor set NA-AV3 anti-vibration mounts Fan screws

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