Kingston KVR667D2D4F5/2G 2GB 667MHz DDR2 CL5 ECC Fully Buffered Memory Standard 256M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Dual Rank(SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X4) Standard 256M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Dual Rank(SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X4) Standard 256M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Dual Rank(SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X4) Standard 256M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Dual Rank(SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X4) Standard 256M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Dual Rank(SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X4)