SpecificationsMfr Part Number: A8CPU Application: Socket G34 supports AMD Opteron 6100 Series up to 135WSolution: 1U ServerHeat Sink Material: Copper heatsink with Heatpipes embeddedFan:Speed:At Duty Cycle 0~20%: 1000 RPMAt Duty Cycle 50%: 3500 RPMAt Duty Cycle 100%: 6000 RPMBearing: 2 Ball BearingRated Voltage: 12 VPower:At Duty Cycle 0~20%: 0.6 WAt Duty Cycle 50%: 3.84 WAt Duty Cycle 100%: 14.4 WAir Flow:At Duty Cycle 0~20%: 6.0 CFMAt Duty Cycle 50%: 10.4 CFMAt Duty Cycle 100%: 17.7 CFMNoise Level:At Duty Cycle 0~20%: 21.0 dBAAt Duty Cycle 50%: 43.7 dBAAt Duty Cycle 100%: 55.0 dBAAir Pressure:At Duty Cycle 0~20%: 2.2 mm-H2OAt Duty Cycle 50%: 18.1 mm-H2OAt Duty Cycle 100%: 53.1 mm-H2OLead Wire Pin Out:Pin1-Black (-)Pin2-Yellow (+)Pin3-Green (Techometer/Signal output)Pin4-Blue (PWM)Dimensions:Fan: 75.0 x 75.0 x 15.0 mmOverall: 115.0 x 79.0 x 27.8 mmWeight: 450.0 gRoHS Compliant