How to find out which USB port is USB 3.0?
They're BLUE!
I believe USB-3 ports should be colored differently (blue)
The use of blue pantone thermoplastics in USB 3.0 connectors is recommended on systems with a mix of USB 2.0 and USB 3.0 ports. For certification, the USB-IF does require that the user be able to clearly and easily distinguish between a USB 3.0 and a USB 2.0 port on a system; however, it is left to the system implementer on how to accomplish this.
(my emphasis)
Also, just because your Computer contains a USB 3 controller doesn't mean it necessarily is presented externally
On my HP laptop, USB 3.0 ports logo/symbol have an "SS" (for Super Speed). USB 2.0 ports only have the typical USB symbol with no "SS".
See the following image: http://www.usr.com/education/periphimg/USB-connectors-edu.png
According the tech specs
Left side: two USB 3.0 ports, external monitor (VGA DB-15, HDMI), ethernet (RJ-45)
Right side: one USB 2.0 port and one eSATA/USB combo port