kingston valueram 8gb 667mhz ddr2 ecc fully buffered cl5 dimm (kit of 2) quad rank x8 product description : memory kit memory capacity : 4 gb memory type : ecc sdram-ddr2 667mhz packaging details : 240-pin fully buffered dimm component config : 512m x 72 pieces/unit : 2 voltage : 1.8v cas latency : 5