Patriot 8GB(2x4GB) Viper III DDR3 1866MHz (PC3 15000) CL9 Desktop Memory With Low Profile Red Heatsink - PVL38G186C9KR Viper 3 Red Low Profile 240-Pin NON-ECC UDIMM 1.5V PC3-15000 (1866MHz) Intended for all DDR3 platforms XMP 1.3 Viper Performance Memory 11-11-11-30 Viper Performance Memory