Crucial 4GB Single DDR3 1066 MT/s (PC3-8500) CL7 SODIMM 204-Pin Notebook Memory Module CT51264BC1067 at Amazon.com
4GB Kit (2x2GB) PC2-5300 RAM, DDR2 667MHz SODIMM 2RX8 CL5 1.8V 200pin Memory RAM for Laptop Notebook Computer at Amazon.com
Kingston ValueRAM 4GB 667MHz DDR2 Non-ECC CL5 DIMM (Kit of 2) Desktop Memory at Amazon.com
Kingston Technology 4 GB Memory for Select Apple Imac's and Macbooks Single (Not a kit) 1066 MHz (PC3 8500) 204-Pin DDR3 SO-DIMM KTA- MB1066/4G at Amazon.com
4GB DDR2 800MHz Memory,4GB Large Capacity DDR2 Memory Module,800MHz Fast Data Transmission Memory Module,240PIN RAM DDR2 4GB for AMD,for Desktop Computer,Plug and Play at Amazon.com
PC2-6400 DDR2 4GB 800MHz 1.8V 240 PIN Desktop Computer Memory RAM Module High Speed Data Transmission for AMD at Amazon.com
4GB KIT (2 x 2GB) for Dell Vostro 230 230s. DIMM DDR3 Non-ECC PC3-8500 1066MHz RAM Memory. Genuine A-Tech Brand. at Amazon.com
OWC 8 GB (2 X 4GB) ram PC8500 DDR3 1066MHz sodimm 204-pin Memory Upgrade Kit, (OWC8566DDR3S8GP), Compatible with MacBook Pro, MacBook, Mac Mini and iMac at Amazon.com