Nintendo R4 Cards: R4i-SDHC 3DS Upgrade Revolution for 3DS/NDS /NDSL/NDSI/NDSIXL
1pcs R4i-sdhc 3ds Rts Upgrade Revolution For Dsi For 3dsll/n3ds/ndsi Xl/ndsi/ndsl/nds - Accessories - AliExpress
R4i-sdhc 3ds Rts Upgrade Revolution For Dsi For 3dsll/n3ds/ndsi Xl/ndsi/ndsl/nds - Accessories - AliExpress
2021 Version R4 R4i Gold SDHC For DS/3DS/2DS/ Revolution Cartridge+USB Adapter | eBay
Found these old R4 flash cards, black one says "R4i V1.4.1" and white one says "NEW R4 SDHC". Which one is better for a system of the 3DS family and how can