Helolo. I buy professional kit of Aircross 2. In compability list exist Fujifilm X-T3 with M3C-USB. how its properly connect and set>
First, make sure your camera is upgraded to the latest firmware.
Second, connect the cable to your camera and gimbal, it should be the M3C-CP cable.
Third, select the M3C-USB camera setting in the gimbal menus in order to tell the gimbal which camera you are using.
Hope that helps