Nintendo DS Theme

"The M3 Simply uses microSD cards for storage and utilizes only Slot-1, meaning the GBA slot is left free. It is the size of an ordinary DS cart, and has a built-in NoPass. It can also be used to flash a DS with FlashMe. The biggest drawback is lack of GBA support, although it has better compatibility with DS games. This is a direct result of not needing to patch the DS ROM dumps (often referred to as "clean ROMs.") It also may handle e-books, music, and movies with the use of Moonshell.

The M3 Simply uses the same exact board as the R4DS, with the exception of two points being soldered together. The interfaces are the same except for different graphics, and the cards have different labels. R4 is the direct manufacturer of the devices."