Humminbird Interlink with cables. $100
I had this connecting a 798 and a 998. I upgraded to an 1199 and need to buy a new Ethernet box.
"The Interlink will not work with any of Humminbird's 2014 products in the 11X9ci, 9X9ci or 8X9ci Series of products. "http://www.humminbird.com/Products/AS-INTERLINK/
Unit was just taken off the boat and worked fine on Texoma yesterday.
Illegitimi non carborundum.
When the common good disintegrates, the only thing then left is how many troops you have.