There's lots of reasons to mount an extra camera on your Inspire 1: two-person FPV, flying a thermal or multispectral camera, etc. This is a mount plate for the Feiyu G3 aircraft gimbal that slots right into my mount system so that the whole system requires no modification to your aircraft (Dual Lock version coming).
Simply print and screw gimbal onto plate using included screws. The mating is very solid, so you'll want to pre-thread the holes using one of the screws.
It's designed to be paired with the Inspire 1 Video Transmitter Backpack, although that's optional as long as you power the gimbal some other way.