Kingston KVR667D2S8F5/512 512MB 667MHz DDR2 ECC Fully Buffered Memory Standard 64M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Single Rank (SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X8) Standard 64M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Single Rank (SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X8) Standard 64M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Single Rank (SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X8) Standard 64M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Single Rank (SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X8) Standard 64M X 72 ECC 667MHz 240-pin Fully Buffered DIMM Single Rank (SDRAM-DDR2, 1.8V, CL5, FBGA, Gold, X8)