Multiple Navionics+ Cards in eS series MFD

[lkgreen]

Chuck,
Yes is the short answer. I purchased the update card from Blue Water Books at the same time I purchased the new Micro SD cards. Navionics has an online process where you first insert the CF card in a card reader which Navionics can then recognize, then as I recall the process at the same time I inserted the Micro SD card and proceeded to do a Freshest Data update. As I recall it the price of the update card was about $125, which seems to be something like a 1 year subscription for Freshest Data plus the cost of the card and USB card reader. I believe there was some time frame like a year or so after which I would not have been able to do the update.