Arch Memory Certified for Dell 2 GB (1 x 2 GB) SNPKU354C/2G A6993732 240-Pin DDR2-667 PC2-5300 UDIMM RAM Arch Memory is a Registered Trademark of Arch Computer, LLC 1 x 2GB DDR2-667 PC2-5300 240-Pin UDIMM Dual Rank (2Rx8) 667MHz Non-ECC Unbuffered Lifetime Replacement Warranty Included