Single channel highlight replay recorder. Internal 4GB Buffer to capture and review the event. 3G/HD/SD SDI input, output and loop through with embedded audio. Jog/Shuttle knob as a control input device included. GPI interface allows other devices such as switcher to trigger the playback. Recording file formats: MOV Support NTFS format without 2GB/4GB file limitation. LISN (Local Interconnect Synchronous Network) connection between main unit, remote controller and other devices