anyone know witch r4 card this

hi i have a flashcard i got from a mate
it says on the card R4I R4 TALK 2.0V UPGRADE revolution for ds (ndsixl/ndsill/ndsi/ndsl/nds)
the card is black but all the info on it is it gold
ive been tryin to gind the firmware for it and games but everyone ive tryed wont work
i have a pick of the card but dont no how to put it on
CAN SOMEONE HELP ME!!!!!!