Legendary silence, epic performance and features
For the highest performance, optimized fan blades, especially for heat sinks designed radiator corners and a speed switch with 3 selectable speed options, Silent Wings Pro 4 140mm PWM is the most progressive, performant, and versatile fan by be quiet!
- Optimized fan blades for the highest performance on radiators and heat sinks
- Speed switch allows changing maximum PWM speed between medium-speed, high-speed and ultra-high-speed (up to 2400 rpm)
- Small tip clearance and a fan frame with a funnel-shaped air outlet for extremely high air pressure
- Virtually inaudible operation at regular speed
- 6-pole fan motor for less vibration and power consumption
- Fluid-dynamic bearing enables very smooth operation
- Individual and easy mounting systems for use as a case fan or with a radiator
- Super-long life-span of up to 300,000h
- Valuable sleeved PWM cable and easy to install PWM connector
- Elegant look with high-grade fan sticker in an all-black design