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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
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