Intel E41997-002 Socket 1156 Aluminum Heat Sink & 3.5" Fan w/4-Pin Connector for Core i7, i5 & i3 Intel E41997-002 Socket 1156 Aluminum Heat Sink Fan General Features: Aluminum heat sink 3.5-inch fan 12 VDC, 0.60A 4-pin power connector (12-inch cable length, approximate) Regulatory Approvals: UL CE