10 Replies Latest reply: Feb 15, 2014 8:04 AM by James Thomson
James Thomson Level 1 (85 points)

I'm looking for a new external hard drive and I realize I need to know whether I neet usb 2 or 3.  Or does this matter?  How do I know?  And firewire?  In the last few years it seems they've changed their plugs a couple times.  And now online I'm seeing apple "Thunderbolt".  Too many options.  What do I need to know?  My software is up to date Mavericks.  My iMac is second release of the all aluminum style of the large flatscreen iMac, it's about 7 years old I think.

iMac, OS X Mavericks (10.9.1)