Hi all, not very tech savvy, but i’m doing my first gaming since high school because of the steam deck. I absolutely love it, just want a bit more memory, and with black friday coming up I need some help.

My question. Are sd and ssd different? Which one should i buy? I just want to not have to delete games all the time for new ones. Elden ring isn’t going anywhere after all. And Emulating is enticing.

Any help would be appreciated:)