Nintendo Licensed microSDX Memory Cards for Nintendo Switch | Western Digital
Amazon.com: SanDisk Ultra Plus 64GB microSDXC UHS-I Card with SD Adapter, Grey/Red, Full HD up to 100 MB/S For Android Phone, Tables and Camera (2 Pack of 64 GB Micro SD- Card) :
SanDisk 64GB Extreme PRO A2 microSDXC Card UHS-I U3 V30 Read Speed up to 200MB/s for 4K UHD Video (SDSQXCU-064G-GN6MA) - Newegg.com
Sandisk Micro Sd Card 32gb 64gb Memory Card Class10 Tf Card 100% Original Tf 128gb 256gb Max 512gb 1tb For Smartphone And Tablet - Memory Cards - AliExpress