Product Detail Dual Fan Support: accommodate one or two fans according to the user's preference Powerful Cooling Performance 180mm Wide Case Compatibility Differentiated Design:a central band of black anodized fins adds a sleek and cool aesthetic finish. High Performance Super Thermal Grease ZM-STG2 . The "ZALMAN CNPS 10X Flex - Processor heatsink - Socket 754, Socket 940, Socket 775, Socket 939, Socket 1156, Socket AM2, Socket AM2+, Socket 1366, Socket AM3 - aluminum and copper" is best product for you. We recommended ZALMAN CNPS 10X Flex - Processor heatsink - Socket 754, Socket 940, Socket 775, Socket 939, Socket 1156, Socket AM2, Socket AM2+, Socket 1366, Socket AM3 - aluminum and copper