C-MAP CM-93 Edition 2 Professional Electronic Charts ECDIS Library IMO GMDSSC MAP CM 93 Edition 2 Electronic Chart In perfect working condition with warranty. You will receive what you can see in the photos. C MAP CM 93 3 What it does The C MAP CM 93 Professional is a global chart database intended for use on advanced electronic charting and navigation systems. CM 93 supports all the new object classes and attributes defined by S 57 Ed. 3. 0, as well as the S 57 data model and updating mechanism. Specification of minimum