1GB KIT (2 x 512MB) For Sony Vaio PCV Series PCV-RS530G (2 Slots) PCV-RS530G (4 Slots) PCV-RS53M PCV-RS600 (2 Slots) PCV-RS600 (4 Slots) PCV-RS600C PCV-RS600CB PCV-RS600CBP PCV-RS600CG PCV-RS600CGP PCV-RS600CP PCV-RS602 PCV-RS604 PCV-RS610 PCV-RS610G PCV-RS610KITBT PCV-RS610KITLT PCV-RS612 PCV-RS612P PCV-RS613G PCV-RS613GX PCV-RS613GY PCV-RS620G PCV-RS620GKITBT PCV-RS620GKITLT PCV-RS630G. DIMM DDR NON-ECC PC3200 400MHz RAM Memory. Genuine A-Tech Brand. 1GB KIT (2 x 512MB) DIMM DDR NON-ECC PC3200 400MHz RAM Memory Genuine A-Tech Memory Lifetime Warranty Toll Free Technical Support 1-866-557-4527 Designed For Sony Vaio PCV Series. (See Compatibility List Below)