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,
Kingston Technology 2 GB DIMM Memory 2 667 MHz (PC2 5300) 240-Pin DDR2 SDRAM Single (Not a kit) KTD-DM8400B/2G at Amazon.com
1GB DDR2-667 (PC2-5300) Memory RAM Upgrade for the Toshiba Satellite P Series P305-S8822 | Better Homes & Gardens