Asus 4g ac55u is the fastest 4g lte router you can buy simply pop in a 4g lte sim card and the built in modem connects wirelessly to the internet via super fast mobile broadband you can enjoy up to 150 mbps downloads and 50 mbps uploads with no worries about usb dongle compatibility it can even connect to a cable modem if you just want to use a 4g lte connection as a backup internet connection with its 4x wider wi fi coverage and concurrent 1167 mbps wi fi speed you can share the internet