The IndiPRO Tools Mini-Tap with Blackmagic Production / Cinema Camera Power Connector Cable allows you to simultaneously power the Blackmagic Production Camera 4K or Cinema Camera and up to two other devices from a V-Mount or Gold Mount battery that has a D-Tap port.
On one end, the cable features a T-shaped component with a male D-Tap connector on the bottom, a female D-Tap port on the side, and a USB port on the other side. The male D-Tap is for plugging into the V-Mount/Gold Mount battery, sold separately. On the other end of the cable is a dedicated DC barrel connector for the Blackmagic Production Camera 4K / Cinema Camera.
The USB port outputs 5V of power at up to 2A, allowing you to connect most mobile and select audio devices on set.