The best R4 card with RTS feature is this one, R4i sdhc 3ds rts from the r4i-sdhc.com. It has a really good compatibility, R4i 3ds rts read DS games on all the Nintendo consoles, New 3DS, New 2DS, 3DS, Old 2DS, DS, DS Lite, DSi. With the R4i SDHC 3DS card, you can play unlimited DS games with a microSD card. R4i SDHC 3DS also supports homebrews, RTS and...
Stargate 3ds plays 3DS Games and NDS Games, it works on Nintendo 2DS, 3DS, 3DS XL, NEW 3DS, NEW 3DS XL and NEW 2DS XL consoles, support hacking any firmware version from V1.0 to v11.9, it's your plug and play method to play free games on 3DS.
The newest R4i gold pro version, 2019 R4i gold pro with full support for the latest 11.9.0 3DS, 3DS XL, 2DS as well as the DSi and DS Lite consoles. It supports NTRboot, and plays DS games as well. Supports Moonshell 2.2. Fast Local USA/EU Shipping, Cheap Price and PayPal Accepted.
Ace3DS X is shipped from United States or EU. It's NTRBootHax pre-installed and ready to go. The Cart has two modes: ntr-boothax mode and DS mode for playing Nintendo DS ROMs. Comes ready to use. Works on any 3DS/2DS and any firmware version.