What’s the difference between the Hub2x2 and the Cab Hub2?

The radios are the same – thee Cab Hub2 comes with two things to make it work in the cab of your tractor, sprayer, combine, truck, or ATV: a power cable that plugs into the 12 volt utility plug of the vehicle and powers the Hub, and smaller antenna connectors on the radio for use with the external magnetic-mount antennas.