This cable provides both power and data communication capabilities. While a standard power cable only supplies electrical power, this cable also includes NMEA 0183 data wires that allow your GPS to share navigation information with other marine electronics like chartplotters, autopilots, and radar systems.

While experienced boat owners can install this cable, proper NMEA 0183 wiring and marine electrical connections require specific knowledge. For safety and optimal performance, we recommend installation by a qualified marine electrician familiar with ABYC standards and NMEA protocols, especially for complex multi-device installations.

This NMEA 0183 cable can transmit various navigation data sentences including GPS position (GGA, GLL), speed and course (VTG, RMC), waypoint information (WPL), and route data (RTE). The specific data available depends on your GPS model's capabilities and configuration settings.

Wire connection specifications vary by device model. Consult the installation manual for your specific GPS unit and receiving devices for detailed pinout diagrams and wire color codes. Garmin technical support can also provide specific wiring diagrams for your equipment combination.

Yes, since this cable uses the industry-standard NMEA 0183 protocol, it can interface with NMEA 0183 compatible devices from other manufacturers including Furuno, Raymarine, Simrad, and others. However, verify voltage and data format compatibility before connecting to non-Garmin equipment.