Patriot Gamer Series 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model PGS36G1600ELK Extreme Performance PC3-12800 (1600Mhz) Equipped with lightweight aluminum heat-dispersing shields 100% Tested and Verified Lifetime Warranty XMP Ready-Tested on IntelX58 chipsets