7fc84389_M2_Getting_Started___MakerGear__Notes
[Name] COM Port (or Port) [Function] Selects the COM port to connect to [Notes] 
Clicking Port will refresh the dropdown list of active COM ports. For Mac, use the device ID noted previously, e.g. /dev/cu.usbmodemXXX
M2 Getting Started - MakerGear
Notes