The Ronin-S DC power cord connects the camera to the 12V accessory power port of Ronin-S, which is suitable for some electronic devices that support 12V voltage input (note the plug size 5.5*2.1mm). If it is applied to a 7.2V-8.4V camera, the other end of the cable can choose to use our company’s step-down Cable, Under the "12V-24V step-down Cable" column in the web menu, learn about the relevant information according to your camera brand and model. thus solving the limitation of the Electronic equipment own battery. Package Includes: 1 x DJI Ronin-S special plug cable Package Includes: 1 x DJI Ronin-S special plug cable (Length:30CM-40CM)