If you want to play 3ds games, then now gateway 3ds and sky3ds card is your best choice. If your 3ds is 4.1-9.2, then gateway 3ds or sky3ds both ok. If 9.2 higher or N3ds console, then sky3ds only. I have the blue button SKYDS card , & it works perfectly on my 3DS XL with latest update. The...