HP 1GB DDR2 SDRAM Memory Module - 1GB (1 x 1GB) - 667MHz DDR2-667/PC2-5300 - ECC - DDR2 SDRAM - 240-pin at Amazon.com
8GB Kit 2 X 4GB DDR2 Server Memory Upgrade for HP Workstation XW6400 SDRAM ECC Fully Buffered FB DIMM PC2-5300 240 pin 667MHz RAM (PARTS-QUICK Brand) at Amazon.com
URAM Laptop Memory 2GB 667MHz PC2-5300 PC2-5400 DDR2 SDRAM SODIMM RAM Stick for Mac, Intel, & AMD Systems, blue at Amazon.com
4GB DDR2 Memory Ram, PC2-6400 PC3-12800R 32GB DDR2 800MHZ PC Memory Ram 240Pin Module Board for Desktop Computer, for AMD at Amazon.com
URAM DDR2 SDRAM 2GB 667MHz PC2 5300S PC2 5300 1.8V 200 pin Non-ECC SODIMM Samsung Chip Laptop Memory RAM for Notebooks with Intel and AMD Systems, and for iMac,MacBook,MacBook Pro and Mac
4GB [2x2GB] DDR2-667 (PC2-5300) RAM Memory Upgrade Kit for The Apple iMac 7,1 (20-inch, 2.0GHz, MA876LL/A) Intel Core 2 Duo (Genuine A-Tech Brand) at Amazon.com