Our range of DDR3 memory modules includes single, dual, tri, and quad-channel kits, from Adata, G.Skill, OCZ, Patriot, Team, & Transcend. Available at2GB, 3GB, 4GB, 6GB, 8GB, & 12GB capacity, the DDR3 kits vary in standard from PC3-8500 to PC3-20000, and in speed from 1066MHz to 2500MHz.