4GB 2 X 2GB PC2-5300F 667MHz 240 pin DDR2 SDRAM ECC Fully Buffered FB DIMM Server Low Power Memory for HP Workstation XW8600 (PARTS-QUICK BRAND). Equivalent to HP Part Numbers: 397413-B21, 442823-B21,
Rasalas PC2-5300 DDR2 667 DDR2 4GB Kit (2x2GB) DDR2 PC2-5300 DDR2 Sodimm PC2-5300S 1.8V CL5 RAM Memory Modules for Intel, MAC, AMD System Notebook Laptop at Amazon.com
IBM 4 GB DDR2 SDRAM 4 GB 667 MHz DDR2-667/PC2-5300 ECC DDR2 SDRAM Memory Module PW2821 at Amazon.com
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 [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