ECS Z77H2-A2X Deluxe User Manual page 28

5. F_USB: Front Panel USB 2.0 headers (supports EZ Charger)
The motherboard has one USB 2.0 header supporting two USB 2.0 ports. Addition-
ally, some computer cases have USB ports at the front of the case. If you have this
kind of case, use auxiliary USB connector to connect the front-mounted ports to the
motherboard.
F_USB 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 recharg-
ing within less time.
Please make sure that the USB cable has the same pin assignment as indi-
cated above. A different pin assignment may cause damage or system hang-
up.
6. COM: Onboard serial port header
Connect a serial port extension bracket to this header to add a serial port to your
system.
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Z77H2-A2X Deluxe USER MANUAL