So last Friday while fishing on Sardis I was taking my lakemaster card out of the unit on the bow to put in the unit at the console. Well a big gust of wind came up while I was pulling it out and it went into the lake. Well I should have already bought another card and I wouldn't have had to swap them out. I went ahead and ordered 2 version 4 cards so I won't have to worry about that again.

By the way I found these on eBay for $88.