AAEON EMB-Q77A - Manual (Page 33)

2-25 Chapter 2: Motherboard information
9. USB 2.0 connector (10-1 pin USB1112)
This connector is for USB 2.0 ports. Connect the USB module cable to
connector USB1112. This USB connector complies with USB 2.0 specification
that supports up to 480 Mbps connection speed.
EMB-Q77A USB2.0 connector
+5V_USB_P1112 S_USB_PN11 S_USB_PP11 GND NC
+5V_USB_P1112
S_USB_PN10 S_USB_PP10
GND
USB1112
PIN 1
Never connect a 1394 cable to the USB connector. Doing so will damage the
motherboard.
The USB module cable is purchased separately.