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4Gb 2X2Gb Ram Dimm Compatible with The Dell Optiplex 745 Desktop Memory RAM Ddr2 By CMS A88 - Computer Memory Solutions
Restored Dell Optiplex 745 Small Form Factor Desktop PC with Intel Core 2 Duo Processor, 4GB Memory, 80GB Hard Drive and Windows 10 Home (Monitor Not Included) (Refurbished) - Walmart.com
Solved: Supported memory configuration for Dell Optiplex 745? - Dell Community