The SmallHD PWR-ADP-BB-4K-DUALGM is a Dual Gold-Mount Plus Battery Bracket for SmallHD 4K Monitors, 14v/26v in Black. This smart battery bracket slides right down the Arca Swiss SmartRail on the back of SmallHD 4K monitors (sold separately) and plugs directly in for power (no cable required). Both 14v and 26v batteries are supported and this plate allows for hot-swapping between the two battery plates AND between the plate and the 3-pin XLR power port on the monitor itself and Gold-Mount and V-Mount options are available. Can send battery data to monitor.