The be quiet! PURE WINGS 3 140mm PWM high-speed case fan delivers extraordinarily high performance with progressive features including a speed-regulating closed loop motor. Key Features 140mm case fan with rifle bearing technology Maximum fan speed: 1800 RPM Airflow at 100% PWM / 12V: 72.2 CFM / 122.6 m³/h Air pressure at 100% PWM / 12V: 2.44 mm H₂O Noise level at 100% PWM / 12V: 30.5 dB(A) 4-pin PWM connector Black fan shroud, no LED lighting Dimensions: 140 x 140 x 25 mm Cable length: 460 mm Innovative Closed Loop Motor The closed loop motor constantly monitors the current fan speed and increases it to the target RPM when working against resistance from fan grills or radiators, ensuring the fan always operates at the desired speed.
