Dell Optiplex 9020 SFF motherboard | Laptech The IT Store.
Amazon.com: Dell OptiPlex 9020 Small Form Computer Desktop PC, Intel Core i7 3.4GHz Processor, 16GB Ram, 512GB M.2 Solid State, Wireless Keyboard & Mouse, Wi-Fi & Bluetooth, Windows 10 Pro (Renewed) :
Restored Dell 9020 SFF Desktop PC with Intel Core i5-4690 3.5GHz Processor, 16GB Memory, 2TB Hard Drive, and Win 10 Pro (64-bit) (Monitor Not Included) (Refurbished) - Walmart.com