Be Quiet! (BL098) Silent Wings Pro 4 120mm PWM Case Fan, Black, Up to 3000 RPM, 3x Speed Switch, Fluid Dynamic Bearing Non-Profit 6-pole fan motor and fluid-dynamic

6-pole fan motor and fluid-dynamic bearing for less vibration and very smooth operations

Ultra-high-speed ultimately offers enough rpm to cool even the most demanding hardware in high-end PC builds

It is for this reason that the fan blades of Silent Wings Pro 4 140mm PWM have been developed newly from scratch

Pure Wings 3 can be operated with very low minimum rpm for very quiet operation

mechanical stress on the mainboard and CPU is minimised

Be Quiet! (BL098) Silent Wings Pro 4 120mm PWM Case Fan, Black, Up to 3000 RPM, 3x Speed Switch, Fluid Dynamic Bearing Non-Profit 6-pole fan motor and fluid-dynamicSilent Wings Pro 4 120mm 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 3000 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