Cooler Master R4-L4S-10AB-GP 140 SI1 140mm Blue LED Computer Cooling Case Fan Cooler Master Cm Essentials 140 - Sleeve Bearing 140mm Blue Led Silent Fan For Computer Cases And Radiators - Blue Led, 140x140x25 Mm, 1000 Rpm Speed, 60.9 Cfm Air Flow, 16 Dba Noise Level, 35000 Hr Life, Sleeve Bearing, ~ 0.8 Mm H2o Air Pressure, 3 Pin Connector