If the microSD card is unreadable through a peripheral device, the card may use an incompatible file system, such as NTFS, or it may not be formatted at all. Data corruption could also be the culprit.
When you insert a new Micro SD card on your Steam Deck you will need to format SD Card so that you can install games on your Steam Deck. If you don’t know how to format an SD card on your Steam Deck ...
Kingston microSD and microSDHC are miniature versions of standard SD cards. This tiny memory cards are designed for portable devices, such as phones and ultra-portable MP3 players. Although the size ...