The only type of SD card that works on a Nintendo Switch is a microSD card, which is smaller than a normal SD card.

Switch 2 requires microSD Express cards due to higher bandwidth requirements. Buy from reputable sources to avoid scams and ensure the cards meet the standards, but don't worry about "official" ...

This page contains instructions for how to install an SD card and upgrade your system storage on Nintendo Switch. This process requires a Switch MicroSD Express card, such as the 256GB SanDisk Micro ...

The Switch 2 comes with 256GB of internal storage, a generous amount compared to its predecessor, which started at only 32GB. However, if you want more storage so you can load some bigger games, you ...

Nintendo will repeatedly warn you that the Nintendo Switch 2 can only interface with MicroSD Express Cards, making the Nintendo Switch 2's MicroSDXC or SDHC cards incompatible, but this isn't 100% ...