The cable supplies the information signals from the onboard engine computer to the NMEA cable connecton in the boat. This cable is 19.5 ft. long.
With the vast array of NMEA components available from a number of manufacturers, here are a couple of suggested gauge offerings. All NMEA compatible gauges, regardless of the manufacturer, will operate with Honda Marine engines that are specified to have a NMEA connection.
GMI 10 Digital Marine Instrument Display