2GB DDR2 533MHz PC2-4200 200-pin SODIMM Laptop Memory by NEMIX RAM at Amazon .com
CMS 2GB (2X1GB) DDR2 4200 533MHZ Non ECC SODIMM Memory Ram Upgrade Compatible with IBM Lenovo® Thinkpad T43P Notebook Series Ddr2-Pc4200 - A59 at Amazon.com
Kingston ValueRAM 2GB 533MHz DDR2 Non-ECC CL4 DIMM (Kit of 2) Desktop Memory at Amazon.com
2GB DDR2-533 (PC2-4200) RAM Memory Upgrade for The Toshiba Satellite P105-S6124 (Genuine A-Tech Brand) at Amazon.com
4GB KIT (2 x 2GB) for Dell PowerEdge Series 830 840 850 860. DIMM DDR2 ECC Unbuffered PC2-4200E 533MHz Single Rank Server Ram Memory. Genuine A-Tech Brand. at Amazon.com