Connecting a G80 to Macbook Pro with a USB C port

Garmin G80 can not be found by Garmin Express on my Macbook Pro. The laptop only has USB C ports on it. I can use an adaptor and the G80 will charge and I can see the Garmin G80 in the Finder window. I've had no problems on my previous laptop with a USB port.

Any suggestions as to how to connect to Garmin Express so I can update my G80.