B-Box (RED KOMODO) attaches to the camera-right BP-9 battery slot and provides a breakout for the camera's EXT connector. Battery Slide Pro V-Mount or Gold Mount for RED KOMODO can be used simultaneously and custom right-angle LEMO compatible connector allows for neat cable run. Canon BP-9 batteries could also be attached in camera-left slot while B-Box is used.Available ports include:R/S (3pin Fischer) Simple run/stop for Handgrip Trigger Box, Simple 3pin Fischer Trigger Cable, etc. No power available Devices like ARRI WCU-4 may require CTRL port interface with cable K2.0015758 pin1: GND, pin2: N/C, pin3: GPITimecode (5pin LEMO) Standard wiring for timecode in/out Pin1: GND, pin2: LTC-IN, pin3: N/C, pin4: N/C, pin5: LTC-OUTCTRL (4pin LEMO) Standard wiring for RED CTRL Pin1: GND, pin2: UART-RX, pin3: GPO, pin4: UART-TX5V (USB) 5V available at 500mA maximum Power may need to be enabled in camera menuGenlock (BNC) Standard wiring for genlock Center: signal, shell: GND