Autolizer CP-FAN-12025CR 120 mm Sleeve Bearing Silent Cooling Fan for Computer PC Cases, CPU Coolers and Radiators, Quite and Transparent, Clear (Red Quad 4-LEDs) 120mm x 120mm x 25mm | speed up to 1500rpm (maximum rpm) | noise (DBA)| airflow (cfm) 66.2 cfm Seven fan blades and a sleeved bearing system for less vibration, noise and turbulence High static pressure for efficient radiator or heatsink cooling Rohs compliance for protecting the environment, 2 year warranty from authorizer authorized dealer Tuned for high-airflow, large volume cooling up to 50, 000 hour life span