Rumor: Nintendo Switch Will Support Micro SDXC Cards Up To 128GB In Capacity

[JRPGfan]

KLXVER said:
So now developers must finish their games before release? Well there goes the majority of third party support...

And probably stay under 64 GB.... and must have their game able to run off of a cartridge (instead of installing to a HDD).

Yes its going to limit 3rd party support.