Humminbird Ethernet Switch/Hub AS ETH 5PXG for Helix or Solix Networking together & with Minnkota Trolling Motors. Used, but works good, no issues or corrosion. Selling for less than half of new at $150 vs $330.

https://humminbird.johnsonoutdoors.com/us/shop/accessories/cables/as-eth-5pxg-5-port-ethernet-switch

https://www.scheels.com/p/humminbird-as-eth-5pxg-ethernet-switch/08232403764.html?cq_cmp=20539813401&cq_med=pla&cq_net=x&cq_plt=gp&cq_src=google_ads&gad_source=1&gclid=Cj0KCQjw3ZayBhDRARIsAPWzx8o-5evZFicHeZ8Xn_eaqxvKjKWoA0ErtgCqtMuibogn70xWP22XzM4aAjajEALw_wcB&src=hardlines