kingston - memory - 4 gb 2 x 2 gb - fb-dimm 240-pin - ddr2 - 667 mhz - cl5 - 1.8 v - fully buffered - ecc
two 2gb memory modules totaling 4gb of of fully buffered memory . specs include standard 256m x 72 ecc 667mhz 240-pin fully buffered dimm ddr2 1.8 v cl5 fbga gold .