Deepcool ALPHA 200 ST (PWM) Socket 775 Copper Base/Aluminum Heat Sink & 3.62" Fan w/Copper Heatpipes & 4-Pin Connector Deepcool ALPHA 200 ST (PWM) Heat Sink and Fan General Features: Copper base Aluminum fin heat sink 3.62-inch (92 x 92 x 25 mm) Hydro Bearing fan with PWM function (Pulse Width Modulation) Two (2) Copper heatpipes provide excellent heat transfer Cost effective solution up to 95W 7-inch 4-pin power connector