be quiet! Silent Wings 4 140mm PWM high-speed Black fan, optimised fins, extraordinary high performance, extremely high air pressure, very quiet operation

Price: €34.45
(as of Feb 18, 2026 19:50:38 UTC – Details)

The Silent Wings 4 140mm PWM high-speed is the ideal fan for all imaginable operations. Whether in a box, in radiators or in heatsinks. Features such as noise-optimized fan blades and funnel-shaped fan frame make the Silent Wings 4 140mm PWM high-speed a fan that supports virtually inaudible operation with high performance.
The Silent Wings 4 140mm PWM high-speed provides extraordinary air pressure and therefore significantly improves system performance. This is possible thanks to the shorter distance between the blades and the frame. In this way, the Silent Wings 4 140mm PWM high-speed allows the user to use even the most demanding applications.
The Silent Wings 4 140mm PWM high-speed includes 2 mounting options. Pre-installed anti-vibration mount minimizes noise-generating vibrations. For radiators and heatsinks, plastic mounting is the ideal choice. Both solutions have in common that they allow practically inaudible operation at normal speed.
6-pole fan motor with 3 phases for very low power consumption, lower vibration and therefore quiet operation with a maximum of 29.3 dB(A). Equipped with this state-of-the-art technology, the fan impresses with impeccable operation and thus reduces performance costs.
Advanced Liquid Dynamic Support (FDB) allows for long lasting fan life of up to 300,000 hours. In addition, it significantly reduces vibrations and contributes to the virtually inaudible operation of the Silent Wings 4 140mm PWM high-speed.