The Nintendo Switch supports additional microSD card storage but if your own console is not detecting or reading the SD card you insert, you’ll have to perform a number of troubleshooting steps ...

Unfortunately, this also means you'll need a new SD Express card for the Switch 2. If you're not familiar with this particular type of card or why it matters, let's break it down.

The Nintendo Switch 2 is only compatible with a newer kind of microSD card—one that you probably don't have yet.