I got one, a fishing buddy of mine was trying to copy his dads navionics platinum chip onto his own SD card for his little dingy boat, well naturally he called me for assistance. I went over there and said how it MAY not be possible but ide have to take a look, needless to say he thinks he knows what he is doing so he tries to do it but apparently he didn't realize the card had a HID on it and was card specific, so it wouldnt work on his dads card any more and never even worked on his. 250 bucks later and him cursing me out for not getting there soon enough. (I would never promote anything illegal but apparently there arent many fisherman that are tech savvy because its pretttttyy easy to copy those cards and every where i read it says impossible....but i would never condone such things..)