EPIA-M860 User Manual
21
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.
Figure 22: USB pin headers
USB_3
USB_4
Pin Signal
Pin Signal
Pin Signal
Pin
Signal
1
+5CDUAL
2
+5CDUAL
1
+5CDUAL
2
1
Reserved
3
USBD_T3-
4
USBD_T2-
3
USBD_T6-
4
1
Reserved
5
6
5
6
1
Reserved
7
Ground
8
Ground
7
Ground
8
1
Reserved
9
—
10
Ground
9
—
10
1
Reserved
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.