You mean can they be flashed with ntrboothax?Can the Supercard DS ONEi be transformed into one of these "3DS-CustomFW-enabler"?
No, you can not. I am not sure what these usually sell for, but my guess is that, if at all, they are only worth something to collectors. The M3 looks quite interesting, though. Afaik, this one can also be used as a GBA Flash card. If you want to get rid of that, just tell meCan the Supercard DS ONEi be transformed into one of these "3DS-CustomFW-enabler"?