CMS 2GB (1X2GB) DDR2 5300 667MHZ NON ECC SODIMM Memory Ram Compatible with Apple Mac Book Macbook Pro Memory Sticks 667Mhz Pc2-5300 - A38 - Walmart.com
Crucial 2GB DDR2 667 MHz (PC2-5300) CL5 SODIMM 200-Pin for Mac (CT2G2S667M ) at Amazon.com
Amazon.com: OWC 2GB PC5300 DDR2 667MHz SO-DIMM Memory Compatible with MacBook, MacBook Pro, iMac, and Mac Mini Models with Core 2 Duo Processor (OWC5300DDR2S2GB) : Everything Else