4GB (2X 2GB) Kit DDR2 PC2-6400 RAM Memory Upgrade for Dell XPS 420 625 630 630i 700 710 720 One 20 One 24 (PARTS-QUICK) - Walmart.com
Bewinner Laptop DDR2 RAM,DDR2 800Mhz 2G 200Pin for Laptop High Running Speed Memory RAM,Compatible for Intel/AMD Motherboard,Fully Applicable to DDR2 PC2-6400 Laptop at Amazon.com