8GB (2 x 4GB) - 667MHz DDR2-667/PC2-5300 - DDR2 SDRAM - 240-pin at Amazon.com
8GB Kit 2x 4GB DDR2 667 MHz PC2-5300 Sodimm Memory for IBM Lenovo HP Dell Laptop 635934050144 | eBay
Kingston PC2 5300 4 GB DIMM 667 MHz DDR2 SDRAM Memory (KVR667D2D4F5/4G) for sale online | eBay
4GB DDR2 SDRAM 667MHz
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,