HomeSwitch-4 is a small, low-cost, open hardware, USB-C powered 4-port Gigabit ethernet switch, running OpenWRT.
It’s VLAN-capable and can handle simple VPN and routing applications (CPU connected via 100 MBit/s).
It uses a cheap Allwinner V3s SoC (Cortex A7, 64MB DDR2) and a Realtek RTL8367RB switch chipset.
The design is optimized for automated assembly.