Mesh routers are much like standard Wi-Fi routers when it comes down to the hardware but they're designed to work in conjunction with other routers to create consistent coverage all over a house. In a mesh, these routers are often called nodes. By using either a wide 5GHz band or another separate band, mesh systems link together to find the best past back to the modem to provide as fast an internet connection as possible. This allows your devices to connect to a nearby mesh node rather than needing to reach all the way to your modem.