The Canon EU-V2 Expansion Unit 2 mounts onto your C500 Mark II camera and provides a V-mount battery mount for power as well as ports that expand the capabilities of your camera. The expansion unit adds five ports: Genlock/Sync Out, Remote B (RS-422), Ethernet, DC Out (24V, 2A), and a lens control port. This unit expands your C500 Mark II for work as a full-sized production camera, adding two 3-pin XLR connectors for audio input. The V-mount battery plate incorporates a D-Tap output for powering accessories.