ZALMAN CNPS9500A-LED 92mm 2 Ball CPU Cooler Type: Fan & Heatsinks RPM: 1350 ±10% - 2600 ±10% RPM LED: Blue Noise Level: 18.0 ±10% - 27.5 ±10% dBA Power Connector: 3 Pin Heatsink Material: Pure Copper Compatibility: Intel: LGA 775 / LGA 1155* / LGA 1156* AMD: Socket 754 / 939 / 940 / AM2 / AM2+ / AM3 Note: Customers that purchased coolers before the inclusion of support for socket 1155/1156, can purchase the separately sold ZM-CS5A or ZM-CS5B mounting kit for installation onto socket 1155/1156. The mounting kit ZM-CS4A can be purchased separately for installation onto socket 1366. Fan Mounting Types to Heatsink: Horizontal