be quiet! Pure Wings 3 PWM High Speed Triple Fan Pack - 120 mm

PERFORMANT, PROGRESSIVE, QUIET Pure Wings 3 120mm PWM high-speed Triple Pack is the perfect addition to demanding PCs with extraordinarily high performance and progressive features such as a speed-regulating closed loop motor. - 3 fans included - Innovative closed loop motor keeps the rpm no matter the resistance - Optimized fan frame for outstanding performance on radiators - Newly designed fan blades and re-arranged angle for extraordinary air pressure - Pure Wings 3 can be operated with very low minimum rpm for very quiet operation - Product conception, design and quality control in Germany Closed loop motor for persistent rpm Pure Wings 3 120mm PWM high-speed Triple Pack features a closed loop motor. This technology is comparable with the cruise control in cars. When working against resistance, for example a fan grill or radiator, fans spin slower as a result. The closed loop motor technology constantly monitors the current fan speed and increases it to the target rpm, if necessary