8GB KIT (4 x 2GB) For Dell XPS 420 700 710/710 H2C 710/710 H2C. DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory. Genuine A-Tech Brand. 8GB KIT (4 x 2GB) DIMM DDR2 NON-ECC PC2-5300 667MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Dell XPS. (See Compatibility List Below)