Dell OptiPlex 390 SFF Small Form Factor Motherboard DDR3 LGA 1155 F6X5P 0F6X5P | eBay
Amazon.com: Dell Optiplex 390 Business High Performance SFF Desktop Computer PC (Intel Quad-Core i5-2400 up to 3.4GHz, 8GB DDR3, 1TB HDD, HDMI, DVD, Windows 10 Pro 64-bit) (Renewed) : Electronics
Restored Dell Optiplex 390-SFF WA1-0327 Desktop PC with Intel Core i7-2600S Processor, 8GB Memory, 1TB Hard Drive and Windows 10 Pro (Monitor Not Included) (Refurbished) - Walmart.com
GENUINE Dell Optiplex 390 SFF Motherboard LGA1155 DPN F6X5P 0F6X5P [F6X5P] - $63.22 : boardss.de, Various Source For Shop a Part Faster For TV Plasma,Screen Panel Electronic Parts, Appliance Replacement Parts, Computer
240w Power Supply Unit Psu For Dell Optiplex 390 790 960 990 3010 9010 Small Form Factor System Sff H240as-00 H240es-00 D240es-0 - Printer Parts - AliExpress