On technical details and other things evaluate the experts among us, I go now times no one, because of it I have no idea. : D
The memory card fits into both of my cameras (Canon EOS 600D and Casio Exilim EX-H15), and into the card slot of the laptop. It has a write protect switch. The workmanship is good. Speed differences to other boards I noticed so far no, but I have the map, too far hardly used for only three days and. ;) It does in any case, what they should and I am satisfied. :)