Original Expansion Plate for DJI Ronin 4D, Use For SDI / XLR / TC Interfaces, Expansion Plate1. Mounted on the back of the Ronin 4D, it is used to expand the timecode interface, SDI output interface and XLR audio input interface 2. When using with the Ronin 4D transmitter, you need to install the Ronin 4D body expansion board first, and then install the Ronin 4D transmitter 3. Easy to install, easy to use 4. Packing list: fuselage expansion board x 1 5. Adaptable products: DJI Ronin 4D 6K, Ronin 4D 8K Specification: General Compatible with