Add theXDCA-FX9 Extension UnitfromSonyto the back of your PXW-FX9 camera to add an ENG-style shoulder mount and additional I/O and power to your camera. The unit features a 4-pin XLR DC power output to power accessories and other equipment, as well as three BNC outputs for raw video, a reference signal, and timecode. A LAN interface and two USB ports provide live streaming and file transfer abilities, as well as compatibility with XDCAM Air streaming playback.