Elitegroup Z87H3-AX GOLDEN (V1.0) - Manual (Page 25)

Chapter 2
19
Z87H3-AX EXTREME (GOLDEN) USER MANUAL
Please make sure that the USB cable has the same pin assignment as
indicated above. A different pin assignment may cause damage or system
hang-up.
This Motherboard implements three USB 3.0 header supporting six extra front USB
3.0 ports, which delivers 5Gb/s transfer rate.
5. USB3F_1~3: Front Panel USB 3.0 Headers
4. ME_UNLOCK: ME Unlock Header