Elitegroup Z87H3-A2X GOLDEN (V1.0) - Manual (Page 26)

Chapter 2
20
Z87H3-A2X EXTREME (GOLDEN) USER MANUAL
The motherboard has two USB 2.0 header supporting four USB 2.0 ports.
Additionally, some computer cases have USB 2.0 ports at the front of the case. If you
have this kind of case, use auxiliary USB 2.0 connector to connect the front-mounted
ports to the motherboard.
6. F_USB1~2: Front Panel USB 2.0 Headers (F_USB1 supports EZ Charger)
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.
F_USB1 supports EZ Charger technology, provides 3 times current than general USB
port in off mode for USB devices. It is useful and excellent, especially for the iPhone,
iPad and iPod touch devices that need a large amount of current for faster
recharging within less time.