CPU Socket Intel Socket LGA 1156, LGA 1366, LGA 775AMD Socket AM3, AM2+, AM2CPU Support Intel Core i3, Core i5, Core i7, Core 2 Extreme, Core 2 Quad, Core 2 Duo, Pentium D, Pentium 4, Celeron D, CeleronAMD Phenom II X4, Phenom, Athlon 64 FX, Athlon 64 X2, Athlon 64, SempronSolution DesktopOverall Dimension 124 x 148 x120mmWeight 795 gMaterial Aluminum Fin with 4 x Ø 6mm Heatpipes in HTC structureFan Dimension 120 x 120 x 25mmSpeed At Duty Cycle 0~20%: 1000 RPMAt Duty Cycle 50%: 1300 RPMAt Duty Cycle 100%: 1600 RPMBearing Sleeve BearingRated Voltage 12VPower At Duty Cycle 0~20%: 0.6 WAt Duty Cycle 50%: 1.2 WAt Duty Cycle 100%: 5.4 WAir Flow At Duty Cycle 0~20%: 42.5 CFMAt Duty Cycle 50%: 55.2 CFMAt Duty Cycle 100%: 68.0 CFMNoise Level At Duty Cycle 0~20%: 19.1 dBAAt Duty Cycle 50%: 23.8 dBAAt Duty Cycle 100%: 26.0 dBAAir Pressure At Duty Cycle 0~20%: 0.539 inch-H2OAt Duty Cycle 50%: 0.91 inch-H2OAt Duty Cycle 100%: 1.379 inch-H2OLead Wire Pin Out Pin1-Black (-)Pin2-Yellow (+)Pin3-Green (Tachometer/Signal output)Pin4- Blue (PWM)