R4 is a card specially developed for Nintendo DS series Slot 1 card. You just need to insert a micro SD card to the R$ card and you are really to play download games. It only need to copy some files to the micro SD card for the first initial use. You can put your download games anywhere on the micro SD card folder. There is no requirment for you to modify your firmware and therefore you still enjoy the warranty protection of your console by your respective local vendor.
- Support up to 4GB Micro SD card
- No modification of firmware needed
- Support NDS and IDS games
- Directly save your game progress on the Micro SD card
- Support Wifi Game