The NF-A4x20 is a highly optimized, premium quality 40mm fan with 20mm thickness. Thanks to NOCTUA’s design it offers running smoothness and excellent long-term stability. With a Low-Noise Adapter and OmniJoin Adapter Set, the NF-A4x20 is a premium choice for the highest demands. The PWM version offers fully automatic speed control via 4-pin fan headers and comes with a Low-Noise Adapter as well as an OmniJoin Adapter Set for easy connection to proprietary fan headers.

Package Content:

Low-Noise Adapter (L.N.A.), 4-pin y-cable, 30cm extension cable, OmniJoin adapter set, NA-AV3 anti-vibration mounts, Fan screws


Size40x40x20 mm
Connector4-pin PWM
Speed (+/- 10%)5000 RPM
Min. speed (PWM, +/-20%)1200 RPM
Airflow9,4 m³/h
Acoustical noise14,9 dB(A)
Static pressure2,26 mm H₂O
Max. input power0,6 W
Max. input current0,05 A
Operating voltage12 V
MTTF> 150.000 h

More details can be found on manufacturer’s website.

Weight0.19 kg
Dimensions4 × 4 × 2 cm


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

You may also like...