Don't waste your money on an Acekard. They haven't updated anything since December. Used to be once a month.
Though ak2i uses famous akaio firmware,yet,it was really stopped updated for ages,so maybe choose other 3dsflashcart will be better.
Now I think the DSTWO and R4i gold is the best card, their team updates regularly and these cards can bypass the newest 3DS version directly.
Well actually there beta testing a new card but only one game works on it some japanese baseball game but because the console is region locked you can only use there card exploit on one game and one region but there trying to find more
Confirmed Working Flashcarts on 3DS 5.1.0-11 R4i Gold 3DS Supercar Dstwo Ace3ds Plus R4i-sdhc 3DS V4.5 R4i-sdhc 3DS RTS R4i sdhc Silver www.depot4u.com