When FriendlyElec launched the NanoPi R3S last year, the tiny single-board computer was positioned as a router board that packed two Gigabit Ethernet ports and a Rockchip RK3566 processor into a board measuring just 57 x 57mm (2.24" x 2.24"). Now the company has added a new model to its lineup that adds a few features the original was missing: including an HDMI 2.0 port for video output, as well as MIPI-DSI and 2-pin speaker connectors.