Socket 775 Copper Core/Aluminum Heat Sink & 3.5" Sleeve Bearing Fan w/4-Pin Connector up to Core 2 Quad 2.66GHz Socket 775 Copper Core/Aluminum Heat Sink 3.5-inch Fan General Features: Aluminum heat sink Copper core For socket 775 processors 3.5-inch fan 12VDC, 0.60A Supports up to Intel Core 2 Quad Q9450 2.66 GHz 12-inch 4-pin power connector Regulatory Approvals: CE UL