be quiet! SilentWings 3 PWM

Its secret: a quiet-running 6-pole fan motor, a durable fluid-dynamic bearing, airflow-optimized fan blades, and funnel-shaped air inlets on the fan frame. The 6-pole fan motor with three phases ensures very low power consumption and a vibration-free, quiet operation at a maximum of 15.5 dB(A). The modern and high-quality IC motor control reduces electrical noise sources. With pulse-width modulation (PWM), the fan speed can be intelligently controlled via 4-pin fan controllers found in many motherboards. Seven fan blades with an optimized surface structure ensure excellent airflow during nearly silent operation. The removable anti-vibration mounts minimize the transmission of vibrations to the PC case and surrounding components. The rubberized fan frame is equipped with funnel-shaped air inlets that provide excellent air circulation and extremely high air pressure. The perfect all-round solution for gaming and multimedia PCs, overclocking systems, and use on radiators. The advanced fluid-dynamic bearing ensures a long lifespan of up to 300,000 hours and a vibration-free, quiet operation.