External drives · Setting up your drive
What do the icons and the CURRENT label mean in the Choose Drive list?
Short answer: The icon shows the connection — a bolt for Thunderbolt, an external drive for USB, an internal drive for your built-in disk — then name, format, connection and size. The blue CURRENT label marks the drive in use.
Each row in the left pane shows an icon for how the drive is connected — a bolt for Thunderbolt, a plain external drive for USB, and an internal drive icon for your Mac's built-in disk — followed by its name, format, connection type and total size. The drive Storage Studio is currently using carries a blue CURRENT label.
Click any row to see its details, compatibility verdict and speed test on the right. Values there are selectable, so you can copy them into a support message.