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Noctua FLX 40mm Fan (NF-A4X20-FLX)

Compact 40×40×20 mm fan with 3‑pin connector, SSO2 bearing and A‑Series blades. 5000 RPM gives 9.4 m³/h airflow, 14.9 dB(A) noise, 2.26 mm H₂O static pressure, 0.46 W power, 12 V, >150 k h MTTF. Includes LNA, ULNA, anti‑vibration mounts.

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SPECIFICATIONS:

Size	40x40x20 mm
Mounting hole spacing	32x32 mm
Connector & pin-configuration	3-pin
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
Rotational speed with L.N.A. (+/- 10%)	4400 RPM
Rotational Speed with U.L.N.A. (+/- 10%)	3700 RPM
Airflow	9,4 m/h
Airflow with L.N.A.	8,3 m/h
Airflow with U.L.N.A.	6,9 m/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
Input power (typical)	0,46 W
Input power (max.)	0,6 W
Input current (typical)	0,04 A
Max. input current	0,05 A
Operating 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

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