Be Quiet! BL040 PURE WINGS 2 140mm Quiet PWM PC Case Fan
The Be Quiet! BL040 Very Quiet Operation
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-Optimised Fan Blades
Thanks to its surface-optimised fan blades the airflow is enhanced, noise-generating turbulences are minimised and the air pressure is increased. This feature is the key to effective cooling.
Variable Fan Speed Function
Pulse 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 Technology
The 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.