Transcend 4 GB JetRam DDR2 667MHz 200pin CL5 SO DIMM Dual Channel Kit JM667QSU-4GK (Green/Black) at Amazon.com
Hynix DDR2 667MHz 4GB PC2-5300P ECC SERVER Registered Memory Module
Amazon.com: OWC 4GB PC5300 DDR2 667MHz SO-DIMM Memory Compatible with MacBook (Late 2007/Early 2008), MacBook Pro (Mid/Late 2007, Early 2008), & iMac (Late 2007) Systems with Core 2 Duo Processor : Everything Else
Hynix DDR2 667MHz 4GB PC2-5300P ECC SERVER Registered Memory Module
New 4GB 4x1GB DDR2 PC2-5300 667MHz RAM Memory for Dell Inspiron 531 at Amazon.com
4GB [2x2GB] DDR2-667 (PC2-5300) RAM Memory Upgrade Kit for The Dell Vostro 1710 (Genuine A-Tech Brand) 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