A:Answer Yes. You can use all ports on the router, or leave the WAN open for wireless AiMesh. Wired WAN is recommended if you have a lot of devices. Wireless AiMesh will take up one of the bands entirely for backhaul on both routers. I also recommend Ethernet connection for any primary connections like bridges, home security, or work computers. Though they are good routers individually, I use them as wired nodes with my ax11000, axe11000, and ax89x. Any of the USB ports, or all ports, can be used in the network. Printers, NAS, camera storage drives, etc.