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Refurbished: Dell Optiplex 745 Tower - 2.1GHz Intel Core 2 Duo Processor - 2GB Memory - Windows 7 Home Premium - Newegg.com
Restored Dell OptiPlex 755 Tower Desktop PC with Intel Core 2 Duo E7200 Processor, 4GB Memory, 160GB Hard Drive and Windows 10 Home (Monitor Not Included) (Refurbished) - Walmart.com
Dell OptiPlex - Wikipedia
8GB 4X2GB Dell OptiPlex 745 DDR2 PC2-5300 Memory at Amazon.com
CMS 8GB (4X2GB) DDR2 6400 800MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 745, 745C Series Desktop - A92
Solved: Dell Optiplex 745 CPU Upgrade - Dell Community
Dell Optiplex 745 Core 2 Duo 2.4 GHz, 4 GB RAM, 250 GB Hard Drive Tower | RecycledGoods.com