1. Part Number P199 For Intel Quad Core Core 2 Extreme QX6700 Core 2 Duo Pentium D amp Pentium 4 Socket 775 1U Active Cooler ROHS Compliant Overall Specification Dimension 83 0 mm x 81 0mm x 28 4mm Weight 350g 5g Material Copper Zipped Stacked Heatsink Plastic Blower Thermal Resistance 0 32 c w up to 130Watts for User Reference Fan Specification Dimension 80 0mm x 80 0mm x 15 5mm Rated Speed 5000 10 RPM Bearing 2 x Ball Rated Voltage DC12V Maximum Airflow 14 72 CFM Acoustical Noise 51 7 dBA Lead Wire Pin Out Pin 1 Black Pin 2 Yellow Pin 3 Green Tachometer Signal output Pin 4 Blue PWM