Our range of DDR3 memory modules includes dual and tri-channel kits, from Adata, CellShock, Corsair, G.Skill, GeIL, OCZ, Patriot, Team, & Transcend. Available at 2GB, 3GB, 4GB, 6GB, & 12GB capacity, the DDR3 kits vary in standard from PC3-8500 to PC3-17066, and in speed from 1066MHz to 2133MHz.