High Quality CPU Cooler according to Intel® Standard Main Features Power Type Cooler Suitable for Processor Fan Diameter 9.2 cm Supported Processor Plug Socket 1150, Socket 1155, Bush 1156 Compatible Processors Core i3, Core i5, Core i7 Minimum Spin speed 1000 U/min Maximum spin speed 2500 U/min Noise level (slow speed) 14.7 dB Maximum noise level (high speed)