Image;
(The image shows that DSTWO included with a 2GB SD Card).
Mine hadn't come with SD Card Adapter, but I had an SD Card reader, so I'm okay).
Their official site is at http://supercard.sc/manual/dstwo if you want more information. How did I get it, you ask? Well... on http://v2watch.com (took a month before arrival...)
So anyways, it's included with a MicroSD card (I got a 16GB one with mine ). Which stores all of the data on the flashcart itself. Youcan also store ROMs on it (please make sure to do it with physical copies you already own). I also get applications like Lameboy 0.12 (FileTrip version has a a WS.Reputation.1 virus...) for unofficial GB/GBC emulation. Other unofficial emulation includes NES, Sega Genesis/Game Gear, Arcade, Atari stuff, ZX Spectrum, etc. All right on your (3)DS(i)(XL) < thumbs up for that.
Also supports NDS and GBA emulation (official). The DS ROMs also can be included with cheats (Action Replay codes and such if you type it in). To go to tthe menu for the NDS cheats, gaming guides, etc., push L, R and SELECT simultaneously.
To use 3DS on its latest version, download the Firmware 1.18 version and onto the MicroSD which goes into your DSTwo. If you are going anywhere (waiting room, etc.) why not play TV games on your (3)DS(i)(XL) (N64 and onwards cannot be supported).
Betcha saw this one coming...
It also supports GBA (already mentioned), but I thought people like Qyzbud would be more enthusiastic about the SNES emulation...
Yup. Sure does. I'll show you two DKC images as an example (you can take snapshots of SNES, though only in BMP and 256x192px unfortunately. For GBA, it's BMP format and 240x160px.);
Video;
If I did anything wrong, please let me know (the rules don't say anything about no flashcart discussions). I would also like you to find about this more yourself so I don't spoil everything. The one with a 16GB card is only $58.30 if anyone is curious.
I;m sorry about the messy typing. I kinda rushed this a little bit... Any questions? Please ask me.