How to move pictures and other files to an SD card using your computer or Android phone

You can move pictures to an SD card using a PC, Mac, or Android phone, as long as you have the right card and equipment.
Ars Technica

Android 11, Scoped Storage, and micro SD cards... how to I make my apps see my files?

I want to put a bunch of ROMs on my SD card for the various emulators on my Android device. I setup the card as "tablet storage" instead of "portable storage". I see a combined 192 GB in the storage ...