Humminbird - NMEA 2000 Drop Cable - 2M - 720117-2. This 2 meter NMEA 2000 drop cable offers connection between a NMEA 2000 device and T-connector. The couplers connect to the corresponding T-connectors, creating a simplified installation.. Features:. Includes (1) NMEA 2000 drop cable. Cable length: 2 meter (3.25 ft). 1-Year Limited Warranty