If I recall correctly when we bought this computer I read something about it having USB2 ports, however... on the front of the computer, on the sticker that displays the system specs (no I haven't removed it yet) says "6 USB ports 4 on the back 2 on the front"
Attached is a screenshot of my hardware information pertaining to USB. It does say something about USB2 at the bottom of the list, but I wasn't sure if that means I have USB2 or just my computer can use USB2 devices at USB1 speeds...