Zopsc DDR2 4GB RAM 800MHz Memory Module for AMD CPU Stable Fast Data Transmission 240PIN for High Anti-Interference and Antistatic for Desktop Computer, Plug and Play at Amazon.com
4GB Computer RAM for Sale - eBay
DDR3 4GB Memory Ram+Cooling Vest PC3-12800 1.5V 1600Mhz 240 Pin Desktop Memory DIMM for Desktop AMD Motherboard - Walmart.com
Samsung 4GB DDR3 PC3-12800 1600MHz 204-Pin SODIMM Laptop Memory Module RAM. Model M471B5273DH0-CK0 at Amazon.com