The HLX-VEN-V mounts to the Sony Venice with v-mount back with and without the RS7 module, and has a v-mount front. RS loops through port for start/stop. It passes standard 11-17vdc to camera. With HELIX packs, 100% efficient power is transmitted to 3pin Fischers. With 14v packs, the mount plate boosts voltage to 24v to 3pin Fischers connectors.