be quiet! Silent Wings Pro 4 140mm PWM High Speed - Fan Management Sim * Windows® 7/8/10 PC or

* Windows® 7/8/10 PC or MAC and internet connection required

a very special AI

Energy Mode

Nuka Cola logo key ring

full of winks and references to the great hits of the time

be quiet! Silent Wings Pro 4 140mm PWM High Speed - Fan Management Sim * Windows® 7/8/10 PC orSILENT WINGS PRO 4 140mm PWM LEGENDARY SILENCE, EPIC PERFORMANCE AND FEATURES 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