SanDisk Ultra 400GB MicroSD XC Class 10 A1 UHS-1 Mobile Memory Card up to 100MB/s Read Speed (SDSQUAR-400G-GN6MN) with Mini MemoryMarket MicroSD Memory Card Reader
Switch's Officially-Licensed Micro SD Card Collection Expands With New Fortnite Designs | Nintendo Life
Amazon.com: COCOCKA Micro USB OTG to USB 2.0 SD Card Adapter, Micro SD Card Reader,Trail Camera Memory Card Adapter Connector for Android Phone/Computer,Supports SD/SDHC/SCXC/MMC/MMC Micro : Electronics
Amazon.com: SanDisk - 400GB microSDXC UHS-I for Nintendo Switch : Video Games
400 GB Memory Cards
Amazon.com: SanDisk 400GB Extreme microSDXC UHS-I Memory Card with Adapter - Up to 160MB/s, C10, U3, V30, 4K, A2, Micro SD - SDSQXA1-400G-GN6MA : Electronics