Noctua NF-A4x20 PWM, 4-Pin Premium Quiet Fan (40mm, Brown) 40x20mm 12 V - PWM Single June_2023_update yet effective cleaning power of

yet effective cleaning power of iCloth wipes

and surges

heavy duty outer-bag zipper for reliable opening and closing

Internal matting design

Noctua NF-A4x20 PWM, 4-Pin Premium Quiet Fan (40mm, Brown) 40x20mm 12 V - PWM Single June_2023_update yet effective cleaning power ofNoctua NF A4x20 PWM, 4 Pin Premium Quiet Fan (40mm, Brown) Product Features Quiet premium fan, 40 x 40 x 20 mm, 12 V, 4 pin PWM, max. 5000 RPM, max. 14. 9 dB(A), >150,000 h MTTF Award winning A series with Flow Acceleration Channels and Advanced Acoustic Optimisation frame for superior silent cooling performance 40 x 20 mm format: ideal for 1U servers and as a replacement fan for network and storage devices (routers, switches, NAS, etc.) or other