Komputerbay 8GB 2X4GB DDR2 667MHz PC2-5300 PC2-5400 DDR2 667 (240 PIN) ECC Registered DIMM Desktop Memory 8 GB Komputerbay 8GB 2X4GB DDR2 667MHz PC2-5300 PC2-5400 DDR2 667 (240 PIN) ECC Registered DIMM Desktop Memory 8 GB Technology - DDR2 SDRAM 240-Pin Registered ECC DIMM Specifically designed and tested for compatibility in various devices Lifetime Warranty