The PNY card is just a bit too expensive, without a significant enough performance boost, to really justify picking it over ...

A Steam Deck comes with 64, 256, or 512GB of onboard storage that you can expand with a microSD card. Here’s how to install and format the best cards.

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.

SanDisk 128GB microSD Express Card: $49.99 at Amazon With up to a 880MB/s read speed and up to a 480MB/s write speed, this 128GB microSD Express card can transfer your computer files and game data ...

The highest-capacity microSD card is currently two terabytes, but beware of lesser-known SD card brands, as there are scams out there claiming to hold more.

The Steam Deck will format the microSD of your choice into the Linux-based format, EXT4, so long as you use any compatible SD, SDXC, or SDHC microSD card, you're good to go.