A-3 CPU Socket G34 CPU Support AMD® Opteron 6000™ series up to 85 Watts Solution 1HU Server Cooling Active Material Copper Heatsink Rated voltage 12V Dimension 115.0 x 75.0 x 27.5mm Weight 450g Fan dimension Aluminium 70 x 70 x 15mm Fan speed 6000 RPM Bearing 2 x ball bearing Power 8.76W Air flow 12.83 CFM Noise level 54.40 dBA Air pressure 1.809 mm-H2O Lead wire PIN out Pin1-Black (-)Pin2-Yellow (+)Pin3-Green (Tachometer/Signal output)