Arctic Freezer 34 CO Cooling Fan/Heatsink - 4.72" Maximum Fan Diameter - 28 dB(A) Noise - Air Cooler - Dual Ball Bearing - 4-Pin - Socket R4 LGA-2066, Socket LGA 2011-v3, Socket H2 LGA-1155, Socket H4 LGA-1151, Socket H3 LGA-1150, Socket LGA-1200, Socket AM4, Socket H LGA-1156, Socket R LGA-2011, Socket T LGA-775 Compatible Processor Socket - Aluminum: