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A-Tech 8GB (4X 2GB) Max Memory RAM Kit for Dell OptiPlex 755, 745, 740, (MT, DT, SFF) - DDR2 667MHz PC2-5300 Non-ECC DIMM Upgrade at Amazon.com
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Refurbished: Dell Optiplex 755 Small Form Factor Desktop (R2/Ready for Reuse) with Intel Celeron 430@1.80GHz, 2GB RAM, 80GB HD and licensed Windows 7 Home Premium from a Microsoft Authorized Refurbisher Desktop Computers -
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