4GB KIT (4 x 1GB) For Dell Dell Dimension 4600 4600C 4600i 4800 8300 XPS (Gen2). DIMM DDR NON-ECC PC3200 400MHz RAM Memory. Genuine A-Tech Brand. 4GB KIT (4 x 1GB) DIMM DDR NON-ECC PC3200 400MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Dell Dell Dimension. (See Compatibility List Below)