DEEPCOOL GS120, Slim Fan of 120&times;120&times;20mm, 4-pin PWM, Rubber Screws and Rubber Cable Ties 20mm thickness frees up more space.This allows easy mounting of bigger and taller heatsinks you need 4-pin PWM connector allows GS120 to reduce fan speed when the system is idling 4 rubber installation screws for easy and quick mounting. They maximize vibration absorption to eliminate noise 2 rubber cable ties are provided on the fan cable for cable management Fan Speed: 900150-180010%RPM. Max. Air Flow: 61.93CFM. Noise:18.2-32.4dB