You can do a search on "SD Duplicator". Lots of devices out there. Even if they work you will still be breaking copyright laws, if you are planning to use it in two units. Back in 797 days, wish I could have moved the navionics data to a larger capacity chip, so could record and save without swapping cards back and forth. Two slots in the 798ci took care of that. If simple copying worked, I would like to move the data to a faster SD chip.