How to tell if your computer has USB 2.0 or 3.0 ports?

stagmeister

macrumors regular
Original poster
Jul 17, 2004
179
0
I have a Black macbook. I want to get a new external hard drive but want to know first if I have USB 3.0 ports on my computer so that I can decide on the best drive to get (i.e. if paying more for USB 3.0 will be worth it or not). How can I tell with Mac OS X? I have Lion.