Be Quiet! BL040 Pure Wings 2 PWM Case Fan, 14cm, Rifle Bearing

The Pure Wings 2 140mm PWM fans bring famous be quiet! silent cooling to entry level computing, yet are also appropriate for gaming and multimedia systems. Combining outstanding reliability, quiet operation, and a great price-for-performance ratio, Pure Wings 2 140mm PWM is unique in its class. They are the ultimate reason to put well-known be quiet! silent cooling in your PC.VERY QUIET OPERATIONAchieves a great price-for-performance ratioThe Pure Wings 2 140mm PWM fan operates at only 19.8dB(A) even at maximum speed. The perfect choice for silent home and office PCs as well as gaming and multimedia systems.SILENCE-OPTIMIZED FAN BLADESFor even better coolingThanks to its surface-optimized fan blades the airflow is enhanced, noise-generating turbulences are minimized and the air pressure is increased. This feature is the key to effective cooling.VARIABLE FAN SPEED FUNCTIONVaries the fan speed and noise level of the fanPulse Width Modulation (PWM) allows compatible 4-pin controllers – including those built into many motherboards – to intelligently vary the speed and thus the noise level of the fan. With PWM your system can ramp up the cooling when it’s needed, or operate in maximum quiet mode when it’s not. This feature especially recommends the fan for heat sinks and radiators.RIFLE BEARING TECHNOLOGYGives the fan a very long lifespanThe Pure Wings 2 140mm PWM is the hallmark of outstanding reliability. This is achieved by its high-quality rifle bearing technology, which assures a very long lifespan of up to 80,000 hours.