I live in america, they do not sell them in stores where i live, it won't mean that other places are different. I had to buy them online, and i wouldn't know if i am buying a clone or not. Except that they seem to stop working after specific period of time. My acekard 2i, ACE 3ds, does nothing when i insert the cart, i tried everything. Somehow my r4 SDHC still works, with some japanese konami game the system detects, and i can't find my Supercard DSTWO, which still has my 32GB Sd card in it. I took it out to play some super smash bros, and now i can't find it. If i had to buy so many flash carts to find one that actually is reliable, that is a problem.