Original intel LGA 1366 CPU Copper core 4pin Fan heatsink cooler cooling i7 965 970 975 980 980x 990 990x Push-N-Snap Mounting Type, Only Fit for "LGA1366" CPU Cooling Fan Incompatible for "Screw-Type" Mounting Power Connection: 4Pin For Intel LGA 1366 Processors, i7 965 970 975 980 980x 990 990x Copper Core Heatsink up to TDP 150W