The R4 for 3DS card from http://www.r43ds.org is one of the only cards that works on the Nintendo 3DS V4.3.0-10 for all of your homebrew games, applications, development and classic console and computer system emulators and more! It's one of the only R4 3DS cards that has stood the test of multiple 3ds system os updates, and continues to provide complete compatibility for this hand held game system. You'll be able to play NES games, SNES games, Sega Genesis games and much more with the help of freeware emulators.