SUN X4204A COMP 8GB DDR2-667MHZ ECC 1.8V DR FBDIMMAddOn 8 GB DDR2 SDRAM Memory Module For Server 8 GB (2 x 4GB) DDR2 667 DDR2 SDRAM 667 MHz Dual rank Memory CL5 1. 80 V ECC Fully Buffered 240 pin DIMM Lifetime Warranty VPN: X4204A AM SKU: RSC351627 UPC: 821455325094 DIMM 8 GB capacity is enough to execute all memory hungry programs simultaneously 667 MHz speed with Fully Buffered signal and CL5 latency to execute routine softwares at a steady pace DDR2 667 interface synchronizes electrical and clock