The white be quiet! Silent Wings Pro 4 PWM 140 mm is suitable for a wide range of applications, such as radiators, heat sinks, PC cases, high-end PC systems, and the most demanding graphics applications. The optimized fan blades guarantee optimal performance on radiators and heat sinks. The speed switch allows you to adjust the maximum PWM speed between medium, high, and ultra-high speed (up to 3000 rpm). The short distance between the frame and the fan blades, along with the funnel-shaped air outlets, ensures maximum air pressure. At normal speed, the fan is almost silent. The 6-pole motor and Fluid Dynamic bearing ensure low-vibration and quiet operation. Custom mounting options allow for use on radiators and heat sinks or as a case fan.

• Suitable for radiators, heat sinks, PC cases, high-end PC systems and demanding graphics applications
• Optimized fan blades for best performance
• Speed ​​switch for PWM speed adjustment
• Maximum air pressure due to short distance and funnel-shaped air outlets
• Silent operation thanks to 6-pole motor and Fluid Dynamic bearing
• Mounting options for various applications