SanDisk microSDXC Card, Licensed for Nintendo Switch, 128GB $12.99 or 256GB $17.99

Incredible speeds in a microSD card officially licensed for the Nintendo Switch and Nintendo Switch Lite systems (also works with any other device that supports microSDXC)
Spend less time waiting and more time playing with read speeds up to 100MB/s and write speeds up to 90MB/s.
Instantly add up to 128GB or 256GB.
Store your downloaded games, screenshots and video captures in 1 place so you can travel light.
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Compatible with microSDHC, microSDXC, microSDHC UHS-I, and microSDXC UHS-I supporting host devices