I'm thinking of upgrading my Wii U's 128 GB SD Card to a 256 GB or 512 GB SD Card, and then moving the 128 GB one to my original Wii. But although I know the Wii U supports 128 GB cards, I am unsure if the Wii U supports 256 or 512 GB cards. Does anyone know the max storage capacity for the Wii U?