External drives · Choosing a drive
Is Storage Studio a good way to add storage to a Mac mini or iMac?
Short answer: Yes. On a desktop Mac the drive can stay connected permanently, so everything you move is always reachable. Use a fast SSD on a port on the Mac itself, and back the drive up.
Yes — a desktop Mac is the easiest case, because the drive can stay plugged in all the time. Everything you move to it is always reachable, so you can move larger apps and active folders without worrying about the drive being away.
A fast NVMe SSD on a Thunderbolt or USB4 port at the back of the Mac gives the best results. Keep a backup of the drive (Backup Drive or Data Backup), since it holds the only copy of what you move there.