This adapter cable is use to supply power for the camera mount gimbal , that you do not need a extra battery for the gimbal any more. see the fifth picture.
Deansfemale plug connect your multicopter battery
JST male plug connect the gimbal controller or other Additional DIY equipment for your Multicopter helicopter aircraft
Specification :
80mm 14AWG Soft Silicone Wire for Deans plug
100mm 22AWG Soft Silicone Wire for JST plug
Compatible with DJI Phantom Quadcopter and other Aerial Multicopter helicopter aircraft !