This Rolux Black Magic Cinema Camera Cable RL-C8 has a male D-tap connection and on the other end a male DC connector.
 
Application Rolux Black Magic Cinema Camera Cable RL-C8
 
With this Rolux RL-C8 cable you can supply your black magic cinema camera with power. The DC plug connects to your black magic cinema camera and the D-tap to your v-mount battery or v-mount battery plate.