well, i checked it myself, and it works great! i was able to write a game to the card, play it, then delete the game and the save. it was a bit slow, but that may be because of the weak signal i have in my office. at any rate, this would be an excellent work around for anyone who has lost their G6DS Real USB Reader Writer. if you have a card like this, i highly recommend putting DSFTP on it, just in case you can't find your writer one day.