Kingston 4GB (2 x 2GB) 200-Pin DDR2 SO-DIMM DDR2 800 (PC2 6400) Laptop Memory Model KVR800D2S5/2G - Newegg.com
DDR2 4GB RAM 800MHz Memory Module For CPU Stable Fast Data Transmission 240PIN For High Anti-Interference And Antistatic For Desktop Computer, Plug And Play - Walmart.com