An R4DS is a Slot-1 "flash cart" for the Nintendo DS.
A Flash Cart is a device that is used to allows you to play homebrew and games for that system. There are Slot-1 and Slot-2 Flash Carts.
Most DS flash carts require a MicroSD memory card. Be careful when you buy a DS flash cart, because some can and some can not read MicroSDHC cards. All Memory cards with 4GB or higher memory are SDHC.
There are alternatives to the R4DS, such as the DSTT, Acekard 2, and TopToy.
huh? the R4DS is for the Nintendo DS.
no, but there is no need to, the R4DS has a built in Action Replay.
No it is illegal
Yes the r4ds boots up game boy games into ds mode.
the question is a bit vague: The best model for R4DS: The original R4DS (not pro, not ultra, not SDHC, not R4i etc.) The best kernel version: v1.18 (Released 24th April 2008) www.r4ds.cn
no it is not illegal
no
The official R4DS comes with a CD with everything you need on it. Unofficial ones do not come with a CD, so you will need to find out which website you need to go to for the downloads. You can check the website from any packaging your R4DS came with.
NO !!!!!!!!!!!!!!!
r4ds.cn
It will work if you decrypt the file, but it is easier to use the R4DS cheat editor: http://www.r4ds.cn/download/Cheat_code_editor.html
I checked and you can!