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2.2.10.
USB Pin Headers
The mainboard has two USB pin header blocks that support up to three USB 2.0 ports. The pin header blocks are
labeled as "USB_3" and "USB_4". USB_4 only supports one USB 2.0 port. The pinout of the USB pin headers are shown
below.
USB_3
Pin
1
3
5
7
9
Note:
The USB signals in pins 2, 4, 6, 8, and 10 in the USB_4 pin header block are reserved for the Mini PCIe slot.
Figure 22: USB pin headers
Signal
Pin
Signal
+5CDUAL
2
+5CDUAL
USBD_T3-
4
USBD_T2-
USBD_T3+
6
USBD_T2+
Ground
8
Ground
—
10
Ground
USB_4
Pin
Signal
Pin
Signal
1
+5CDUAL
2
1
Reserved
3
USBD_T6-
4
1
Reserved
5
USBD_T6+
6
1
Reserved
1
7
Ground
8
Reserved
1
9
—
10
Reserved
EPIA-M860 User Manual
21
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