D-Box (C300mkII, Gold Mount) is a custom version of our popular D-Box that adds power distribution, standardized remote start/stop, and hot swap abilities for the Canon C300mkII. Two 12 inch (30cm) cables exit the power plate with one going to the 4pin LEMO power plug and the other going to the Remote port. There is a LANC control board inside the D-Box that communicates with the camera so that any ARRI standard start/stop can be used in the 3pin Fischer ports.