This is a 2016 update card for Garmin G2 GPS chartplotters. It was sent to me by Garmin, so it is the genuine product. It covers basically all of North America. The built-in charts in my Garmin chartplotter did not cover Canada. This update adds Canadian coverage. It is a micro SD format and comes with the original SD adapter as well as a good quality Kingston. Check compatibility with your chartplotter.