this comes with what ever it takes that makes it work on your boat,,just like it does on mine..
Better yet come on down and try it out before you take it and you take it off and what ever else you need to make it work.. It looks new and works like new. It has a card that shows everything you need on it.

We have got a big screen hummingbird we are replacing it with and the truth is the lowrance will probally suite us better..The LMS520 C is the best one i have used so far,,i have another one just like it on the front.But will let either one go every which one you want.. Hurry up if interested because iam advertising pretty hot rite now..lol.