DSTT I Series is the 2ND Generation of DS R4 Revolution with similar features. It is the latest and one of the greates Slot 1 Solutions on the market today. Designed and created by the very same people behind the world very first NDS Linker / Development Cart, the DSTT is backed by a team of excellent designers and developers. Your perfect slot 1 solution is finally here. You can play MP3's, read TXT books, and run your homebrew applications with ease. 1) DS original cartridge size, Slot1 interface Plug 'n Play, easy to use, just Drag 'n Drop file from PC to flash memory card. 2) No FlashMe, built-in NoPass, and the GBA cards in slot2 can be started directly. 3) Supports CleanROM, No covert. 4) 100% SDHC TF and standard TF compatibility up to 4TB(4096GB) flash memory card. 5) High speed SDHC. Supports any TF card speed with no lag in game, 6) Save directly to TF card, not to onboard chip, Never lose your saves. 7) Automatically detect and generate save type. 8) Supports Moonshell and homebrew. DLDI auto-patching. 9) Supports FAT/FAT32, works on any OS. 10) Supports Action Replay cheat and edit the code base. 11) Built-in energy-saving design. 12) User friendly skinnable interface. Touchscreen or button operation. Supports Skin DIY. 13) Supports the "Hot-Key" SOFT RESET. 14) Supports the WiFi game, DS Rumble Pak DS Browser. 15) Supports Download play. 16) Supports 4-scale-lightness adjustment ( DS Lite only ). 17) Free SDHC high-speed reader, Ultimate copy documents.