R4i Save Dongle DS Backup Adapter for 3DS, NDSI, NDSL Games - Newegg.com
10pcs R4i-sdhc 3ds Rts Upgrade Revolution For Dsi For 3dsll/n3ds/ndsi Xl/ ndsi/ndsl/nds - Accessories - AliExpress
R4i gold 1.4.1 doesnt work on dsi 1.4.5E : r/nds
How to Set Up R4i SDHC for DSi V1.4.5!!! - YouTube
Can i run this R4i gold on my 3ds? : r/flashcarts
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