I have microSD cards. I prefer to load the music onto the cards directly from the computer, since then I don’t have to dig through my drawer full of cables and find my Sandisk cable every time I want to add music.
Yes, if you want to load your microSD card directly from the computer, you need an SD card adapter (and an SD card slot on your computer.
But, yes, as others have said, you can load the SD card while it’s in the player plugged into the computer.
