A-TECH 512MB KIT (2 x 256MB) For Dell Latitude C400 C500 Series C510 C600 C610 C800 C810 CPt CPt S-Series CPt V CPx Series V700 V710. SO-DIMM SD NON-ECC PC133 133MHZ RAM Memory. Genuine Brand. 512MB KIT (2 x 256MB) SO-DIMM SD NON-ECC PC133 133MHZ RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Dell Latitude. (See Compatibility List Below)