Axiom 16GB DDR2-667 ECC RDIMM Kit (2 x 8GB) for IBM # 43V7356 - 16GB (2 x 8GB) - 667MHz DDR2-667/PC2-5300 - ECC Chipkill - DDR2 SDRAM - 240-pin DIMM

667 MHz of memory speed makes your computer perform like an athlete RDIMM 16 GB capacity is enough to execute all memory hungry programs simultaneously 240-pin-pin DDR2-667 interface synchronizes electrical and clock signals for an efficient data transfer rate