Greenwing. Not educated enough as far as networking goes as to it's functionality . I will only have one unit on the boat. Thinking right now the Helix 7 or Helix 9. Leaning toward the Helix 9 for the preset screen options it has. It's nice to toggle thru 2-3 different preset screen selections rather than re-setting everytime like I would need to do with the Helix 7.