The DSTTi for Nintendo DSi is exactly the same as the DSTT TopToy and runs the exact same system files, but it now works on DSi! 

• Support for NDSi, NDS, NDSL.
• DS original cartridge size, Slot1 interface.
• Plug n Play, easy to use, just Drag n Drop file from PC to flash memory card.
• No FlashMe, built-in NoPass, and the GBA cards in slot2 can be started directly.
• Supports CleanROM, No covert.
• 100% SDHC TF and standard TF compatibility up to 4TB(4096GB) flash memory card.
• High speed SDHC. Supports any TF card speed with no lag in game,
• Save directly to TF card, not to onboard chip, Never lose your saves.
• Automatically detect and generate save type.
• Supports Moonshell and homebrew. DLDI auto-patching.
• Supports FAT/FAT32, works on any OS.
• Supports Action Replay cheat and edit the code base.
• Built-in energy-saving design.
• User friendly skinnable interface. Touchscreen or button operation. Supports Skin DIY.
• Supports the Hot-Key SOFT RESET.
• Supports the WiFi game, DS Rumble Pak, DS Browser.
• Supports Download play.
• Supports 4-scale-lightness adjustment ( DS Lite only ).
• Free SDHC high-speed reader, Ultimate copy documents