The Xilence Performance C PWM fan series excels with an extraordinary price-performance ratio and a very good proficiency combined with a lo noise development. The black and red case fans are equipped with PWM function as well as high-quality hydro bearings and are available in 3 different sizes. Product Features Optimal performance in every situation Hydro bearing fan Airflow-optimized rotor blades PWM function   Technical Datas Fan Dimension: 120 x 120 x 25mm Connector Type: 4 PIN Sound level: 28 db(A) PWM: yes Fan Bearing: hydro bearing Air Flow: 57,9 CFM Fan Speed: 1.500 RPM ± 10%   Data Sheet