http://wccftech.com/nintendo-western-digiital-switch-sandisk/

Western Digital entered a partnership with Nintendo to produce SanDisk microSDXC memory cards in capacities of 64 and 128GB. The additional storage will be useful to download more digital content; it will even be required for certain Nintendo Switch games that contain an “especially large” amount of content.

Tom Prata, Nintendo of America’s Senior Vice President of Strategic Initiatives, said: