Compatible with: Intel LGA Socket 775/1150/1151/1155/1156/1366%ocs%RGB Ring :120MM diameter auto change colors RGB fan%ocs%High Flow : 1900RPM and 40MM heat sink aluminum design, perfect solution to cooling problems%ocs%Fan Requirements: entry-level priority, Compatible with 3rd and 4th GEN Core I3, I5, I7%ocs%The LEDdess CPU Cooler RGB fan Unique Halo Arc-shaped Frame Shows Horgeous and Vivid Visual Effect