You need this straight BNC cable if you want to connect a Tentacle Timecode Generator SYNC E or ORIGINAL to devices that accept and send timecode over BNC like the Panasonic GH5s, Canon C300 / C500, Sony FS7 with XDCA-FS7, PDW 700 / EX3 / PMW 200, ARRI Amira. It can be used to jam-sync your TRACK E Timecode Audio Recorder from an external timecode source as well.