vR4i-SDHC 3DS RTS allows you to use 3DS console to play NDS(L) games only，not 3DS games..
vNeed to buy Micro SD(TF) card separately.
vReal-time save feature:
Allows user save current game state at any time of the game. Player can immediately continue the game state by reload the save file after the game failed or shut down the console. R4i-SDHC launches unique sharing features where RTS save files can be share between the users.
vReal-time guide feature:
Real-time guide features allows user to read hints/guide of the games immediately without exit to the game. Real-time guide support 2 types of format (text and picture). User can write guide into any “txt” file or “bmp” file. The size of the “bmp” file should be “256x192”. The “txt” file support English, Simplify Chinese and Japanese language coding. If both “txt” and “bmp” file exist, “bmp” guide file will have a priority.
Enhance the features of user cheat. User allow to activate/deactivate/modify user cheat at any point of the game. To do these changes, user need to save the state of the game then return to the MENU to configure the user cheat. After that just need to run the game and reload the RTS save file again.