As a house brand, you’ll get the Onn microSD Express card from Walmart itself. The card we reviewed was the $35.77 256GB ...

The Switch 2 requires newer, faster microSD Express cards—the old SD cards you used with the original Switch won't work. Here's why, and some advice on which Express card to buy.

Switch 2 storage options are limited to a specific type of microSD card. This guide explains which SD cards work with Switch 2 and how to install them.

That means this new card is different to the microSD card which you may have in your original Switch, or Switch OLED. Or, indeed, any product that accepts the card format.