While Wi-Fi is more popular and prevalent than ever, it's still no match for a hardwired ethernet connection. But many of the new routers, especially mesh routers, don't have many ethernet ports built into them. Fortunately, if you have at least one ethernet port, you can expand that to as many as you need with a "Switch". Netgear makes some quality switches, but any unmanaged networking switch should work just fine. They all are very easy to use, as long as you get an unmanaged Switch.