- R4i SDHC 3DS Card is a new released slot-1 flashcard for Nintendo 3DS console.It was designed by branded r4i-sdhc team.R4i SDHC 3DS is a totall new flashcard, which support Nintendo 3DS,DSi and DS console. Genuine R4i SDHC 3DS card contains all functions of r4i sdhc v1.4.4 card. It can run games on 3DS console.