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Western Digital 400GB memory card - CNET
SanDisk 400GB ImageMate microSDXC UHS I Memory Card - Up to 150MB/s - SDSQUA4-400G-Aw6ka - Walmart.com
Best Buy: SanDisk 400GB microSDXC UHS-I Memory Card for Nintendo Switch SDSQXAO-400G-ANCZN
This 400GB microSD card is just $82 on Amazon for a limited time! - PhoneArena