1GB KIT (2 x 512MB) For Clevo Notebook D610S D610SU D620SU D630SU D611S D620S D630S D631S L285PA L285PB L285PD L285PT L285SA L285SB L285SD L285ST L287SB L287SD. SO-DIMM DDR NON-ECC PC2100 266MHz RAM Memory. Genuine A-Tech Brand. 1GB KIT (2 x 512MB) SO-DIMM DDR NON-ECC PC2100 266MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Clevo Notebook. (See Compatibility List Below)