Dell Optiplex 780 USFF Intel Dual Core up to 8GB RAM & Various HDD Wi-Fi Win10 | eBay
Dell Optiplex 780 Ultra Small Form Factor Desktop Intel Core 2 Duo 3.0 GHz, Computers & Tech, Desktops on Carousell
Amazon.com: Dell OptiPlex 780 USFF Desktop Intel Core 2 Duo 3.0 GHz 4 GB RAM 250 GB HD DVD Win Pro 32-Bit (Renewed) : Electronics
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Dell Optiplex 780 USFF E8400 3.00GHz
Refurbished: Dell Optiplex 780 Ultra Small Form Factor PC Intel Core 2 Duo Dual Core 3.0Ghz 4GB 1TB DVD-Rom Windows 10 Professional 64 Bit + USB WiFi Dongle + 19" LCD Monitor 1 Year Warranty - Newegg.com
Dell Updates OptiPlex Line With Small Form Factor PCs | HotHardware