Key Considerations -
Many (but not all) wired network routers allow up to four devices to be connected via Ethernet cable.
All devices connecting to an Ethernet router must possess a working Ethernet network adapter.
Optional Components - Networking the router for Internet access, printers, game consoles and other entertainment devices is not required for the rest of the home network to function. Simply omit any of these components shown that do not exist in your layout.
Limitations - If the Ethernet router does not support enough Ethernet connections, add a secondary device like a network switch to expand the layout.