2021 Version R4 R4i Gold SDHC For DS/3DS/2DS/ Revolution Cartridge+USB Adapter 716155402223 | eBay
How to Easily Setup an R4 Card for Nintendo DS/3DS (Newest Tutorial 2022) - YouTube
I bought Nintendo ds, it came with r4 card in the picture but no instructions and the seller doesn't remember but claimed it is time bomb free and supports up to 500gb