This is an older unit from the 90's. Built in base map, but does not accept map cards. Large screen, GPS only.

Unit works fine, powers up, good display, works in simulator mode, but won't acquire a signal from the antenna. I assume the antenna needs to be replaced. It takes the old LGC-1. No longer available but they pop up on ebay now and again.

I'll sell it for $50, or trades.