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C2D Dell Optiplex 780 Desktop, Hard Drive Capacity: 500GB
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8GB -2x4GB Memory RAM Upgrade for Dell OptiPlex 780 SFF, Desktop & Mini Tower PC | eBay
CMS 8GB (2X4GB) DDR3 10600 1333MHZ Non ECC DIMM Memory Ram Upgrade Compatible with Dell® Optiplex 780 Dt/Mt/Sff Desktops - A69 at Amazon.com