Kingston KTH-XW4300/1G DDR2 SDRAM PC2-5300 (DDR2-667) 1GB 667mhz 240 Pin 1.8V RAM Made for HP XW4300 - Walmart.com
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
Amazon.com: OWC 2GB (2 x 1GB) PC5300 DDR2 667MHz SO-DIMMs Memory Compatible with MacBook/MacBook Pro, iMac, and Mac Mini Models (OWC5300DDR2S2GP) : Everything Else
Super Talent T667UA1GS DDR2-667 PC5300 1GB Memory RAM | eBay