The MaaXBoard Mini is an affordable single-board computer that is about the size of a Raspberry Pi. The board also includes a 40 pin header, a 14 nm quad-core ARM chipset, Gigabit Ethernet and five USB ports. The MaaXBoard Mini sells for US$72.50.
https://www.notebookcheck.net/MaaXBoard-Mini-Raspberry-Pi-alternative-with-extensive-software-support-and-DDR4-RAM-is-now-available.495191.0.html