The TopToy NDSTT card or DSTTi card is a micro perfect slot-1 Cartridge for the NDS, NDS Lite and NDSi respectively (DS TTi Support DSi XL). This micro Cartridge will enhance your NDS/NDSi/NDSi XL system beyond your wildest dreams. It is basically an adaptor that will provide a fast and responsive interface with a microSD/SDHC memory card which will support up to 32GB also supporting, moonshell and hombrew.The NDSTT will turn your NDS / NDS Lite / NDSi / NDSi XL into a multi-media player as well as the great gaming machine it already is.