M3 DS Simply MicroSD/TF Slot-1 Solution Adapter
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Built in passme (no need for a Passcard or other booting card)
Uses micro SD (Transflash) memory. Hold more games by buying a larger card!
100% support for clean ROM's - no need for software patching
Drag and drop functionality - just take your clean files and drag them onto your microSD card.
No drivers or other software required
Supports standard FAT file system
Supports all types of microSD cards regardless of speed
Upgradeable firmware (OS, bios, kernel)
Touch screen menus and robust skinning support
Never lose your saves - back the save file up directly to the microSD card
Autodetects save type and generates the save file for you if one doesn't exist
Moonshell built in for movie playback, music, and Text eBooks
Supports WiFi/WFC, DS rumble pak, and the Opera DS Browser