virtualbox.org

I can't use my flashcard. I have error "Not authorized"
Wat I must do for sokution this problem? Thank you.

Flashcard? You don't need to be authorized to use a flashcard - that sounds more like a dongle: in which case you need to talk to the dongle makers about compatibility with a VM.

You do understand that a VM can't see host hardware right? So an sdcard slot in the host will be useless.