Stymie is right in what he stated. With Ethernet you can also share GPS receivers (you can with InterLink too but that’s it), temperature readouts and sonar. Ethernet will also has the capability of being expanded for other shared features and new accessories that the InterLink cannot. Basically the InterLink is what it is and I doubt will receive any more functionality.

We came out with the InterLink before we went with the Ethernet connections. This allowed us to keep unit costs down (as not everyone wants to share data between units) while providing shared waypoint and GPS Receiver data between two units that had no other means of unit-to-unit communication. Ethernet is a much better replacement for InterLink.