ADATA Supreme 2 GB (2 x 1 GB) DDR2-800 (PC-6400) CL6 DIMM Memory Kit SU2U800B1G62 (Black) DDR2 module is designed to meet the 800MHz data-rate specification of the JEDEC (Joint Electron Device Engineering Council) Compared with DDR, DDR2 owns four key technologies pave the way to high-speed operation and low power consumption. Lifetime Warranty upgrade to better system performance and responsiveness first choice of memory upgrade for value-driven users