Rock64 Single Board Computer
Seems like Pine has abandoned this perfectly good SBC.
I purchased mine before Raspberry Pi 4 was released, when Rock64 was one of the only SBC with Gigabit Ethernet and a USB3 port, still at a reasonable price. Ideal for building a home media server.
Armbian Buster v20 works but dphys-swapfile creates errors while installing NextCloud, Flatpak or SnapD