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off of ebay and here is what it said Comes with 2016 Jan Updated Data. Fresh Water Updates Expired, any disadvantages to this other then freshwater updates expired?
Figured for 85.00 instead of 189.00 I would take a chance, wanting it mainly for reservoirs here in Indiana..
You can compare the data on the card by inserting in the unit and viewing a Chart screen ...
Then compare with the Navionics web app (which is today's data) ...
https://webapp.navionics.com/?lang=e...key=oc~_FjgdzO
Rickie
thanks will give that a shot when card arrives.