Depends on what you want. Helix 5 G2 come in several diff models. Side imaging, down imaging, portable unit. open water ducer, ice ducer. I have the 5 g2 portable and it came with an open water ducer and cable that I hooked up in my Crestliner. I bought the ice ducer to use for ice fishing. I just have to plug and unplug for both ice and open water. It's not a one size fits all. You customize it for what your needs are.