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Renewed Dell OptiPlex 790 SFF Desktop PC i7-2600 8Gb RAM 500GB HDD Windows 10 With 30 days Return, 90 Days Exchange
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CMS 32GB (4X8GB) DDR3 12800 1600MHz Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 790 Mt/Dt/Sff Desktops - C7 at Amazon.com
Dell Optiplex 790 SFF Ram Upgrade? - Dell Community