R4 3DS, R4i for 3DS/ 3DS XL - Official Store

R4 3DS works with the Nintendo 3DS and 3DS XL console, and supports up to 32GB on a single memory chip. ... The R4 3DS or R4i SDHC 3DS as it is also known, works with the Nintendo 3DS and 3DS XL consoles allowing you to store your favourite media files ..

www.r4i-3ds.org