Axiom 8GB DDR2-667 ECC RDIMM Kit (2 x 4GB) for Sun # X6322A, X8098A, X8124A-Z - 8GB (2 x 4GB) - 667MHz DDR2-667/PC2-5300 - ECC - DDR2 SDRAM - 240-pin DIMM

667 MHz of memory speed makes your computer great at multitasking RDIMM 8 GB of memory makes a perfect symmetry with your latest model processor and boosts up your computers performance DDR2-667 interface synchronizes electrical and clock signals for an efficient data transfer rate