SanDisk 128GB microSDXC UHS-I Memory Card for Nintendo Switch SDSQXBO-128G-ANCZA - Best Buy
SanDisk 256GB microSDXC UHS-I Memory Card Licensed for Nintendo Switch Super Mario Super Star- 100MB/s Read, 90MB/s Write, Class 10, U3 - SDSQXAO-256G-AWCZN - Walmart.com
The Best Micro SD Cards For The Nintendo Switch - GameSpot