3ds Complete Rom Set Size ~upd~

I can give you the exact file format and SD card size you will need. Share public link

If you are planning to store these ROMs on a physical 3DS console, keep these technical limits in mind: 3ds Complete Rom Set Size

If using .3DS formats for emulation, run a batch ROM trimmer to reclaim hundreds of gigabytes of dummy padding. I can give you the exact file format