However, if you're looking for the fastest and most consistent connection possible, you should still stick with an Ethernet cable. It's less convenient, but boasts all sorts of advantages.
Both devices also include a router and an Ethernet switch to connect (typically four) computers by wire. A "wireless gateway" is a cable or DSL gateway that includes a Wi-Fi access point.
The switch is also wired to the router and modem to access the Internet. The wireless counterpart to Ethernet is Wi-Fi. An Ethernet switch is one of the three major functions in a wireless router ...