Patriot 8 DDR3 1866 Extreme Performance Viper 3 Series Kit (PV38G186C9K) Capacity: 8GB (2 x 4GB) Kit DIMM Type: 240-Pin NON-ECC UDIMM Voltage: 1.5V Frequency: PC3-15000 (1866MHz) Timings: 9-10-9-27 Feature Overclock: XMP 1.3 Tested Platforms: Intel 6 and 7 Series