New Mac Mini Is my Seagate External Hard drive good now??
Here is a screenshot I don't know how those Mac HD popped up Do I need them or can I get rid of them
How can I transfer stuff to the Seagate as well?
Question marked as
You don not want to get rid of any of them. They are all set up and organized by the system and are absolutely necessary for the operation of the computer.
FWIW, they are not "hard drives" but volumes that the hard drive is divided into. Simple explanation, the hard drive is a bookshelf and has multiple books on it (volumes), each one having its own space on the shelf.