Y otra mas, que creo no aparecia por aqui...
http://www.supercardinfo.com/supercard-ds.html
Feature list:
- Uses a standard MicroSD/Transflash memory card.
- Plug and Play (no need for an additional GBA cart or any type of Flashme/Passme device)
- 100% support for clean ROMs - no need to patch anymore
- no PC software required, just drag and drop the file from your PC to the micro SD memory card
- Hardware save support, Unlimited storage, supports FAT, FAT32
- High speed R/W system, supports all high speed flash memory cards without any slow down
- The best hardware design. It is compatible with all current and future DS consoles, same size as original DS cartridge - does NOT stick out!
- Fully upgradeable firmware and skinning support
Additional functions which may be built in (not 100% sure):
- Can interact with GBA slot. Support SC Rumble Series as a rumble pak
- Using the Supercard DS software (not required), you can trim ROMs, allow software resetting, and many other functions!