Description:
http://www.ace3ds.com/
Hardware: Ace3DS X has a switch for 3DS mode and DS mode
3DS mode-NTRBOOT flashed FLASHCARD. Ace3DS X has been pre-flashed NTRBOOT and supports installing boot9strap on all 3DS consoles models & versions
The using method of Ace3DS X is a little different from other flashcards, and you need to insert one FAT32 microSD card(maximum capacity is 128GB) to your flashcard
The other steps of using Ace3DS X are the same as other flashcards. Follow the Installing boot9strap (ntrboot) instruction in 3ds.guide.
https://3ds.guide/installing-boot9strap-(ntrboot)

Package include:
1Pcs Game Cartridge Super Combo Cartridge
1Pcs card reader