Optimized blades and anti-vibration elements ensure very low noise even at higher speeds.
Automatic PWM speed control delivers exactly the performance your system needs.
High static pressure and airflow make this fan an ideal choice for PC cases and radiators.
The be quiet! Silent Wings 4 140 mm PWM fan is designed for demanding users who require powerful yet ultra-quiet cooling. Aerodynamically shaped blades and an optimized frame ensure efficient airflow and minimal vibrations.
Thanks to PWM control, the speed automatically adapts to the load, so the fan is nearly silent during everyday tasks and delivers the necessary performance during gaming or rendering. A great choice for case fans and liquid-cooling radiators.