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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
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A-Tech 4GB RAM for Dell OptiPlex 780, 580, 380, XE (USFF/SFF/MT/DT) | DDR3 1066 MHz DIMM PC3-8500 UDIMM Memory Upgrade at Amazon.com
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8GB 2X4GB RAM Memory for Dell OptiPlex 780 (Mini Tower) DDR3 DIMM 240pin PC3-8500 1066MHz Black Diamond Memory Module Upgrade - Walmart.com
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