Universal Design / Superior Performance / Unique Fan Bracket / 19 dBA Silent Operation / Pure Copper base / 5 Heat Pipes with High Density Fins 4-pin Connector (PWM Mode) PWM Fan Speed Adjustment 12V Rated Voltage 7V Start Voltage 10.8-13.2V Operating Voltages 0.35A Rated Current 4.2W Input Power CPU Socket - Intel Socket LGA775 AMD Socket (AM2/ 940/939/754) CPU Supports - Intel Core 2 Extreme, Core 2 Quad, Core 2 Duo, Pentium Extreme, Pentium Dual-Core, Pentium D, Pentium 4, Celeron Dual-Core, Celeron D, Celeron AMD Phenom, Athlon 64 FX, Athlon 64 X2, Athlon X2, and Sempron Heat Sink Dimensions - 124x118.4x62mm Heat Sink Material Copper Base - 5 heatpipes, Aluminum fin Heat Pipes Dimensions - 6mm Fan Dimension - 120x120x25mm Dimension - 124x120.8x75mm Weight - 560 grams