Amazon.com: SanDisk Micro SDXC Ultra Class 10 UHS-1 512GB Memory Card Works with Nintendo Switch OLED Model Gaming System (SDSQUA4-512G-GN6MN) Bundle with (1) Everything But Stromboli SD & MicroSD Card Reader :
SanDisk 400GB microSDXC UHS-I Memory Card for Nintendo Switch SDSQXAO-400G-ANCZN - Best Buy
Switch's Officially-Licensed Micro SD Card Collection Expands With New Fortnite Designs | Nintendo Life
MicroSD Cards for Nintendo Switch. Buy and How to Install?