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Chapter 3 I/O Information
Universal Serial Bus (USB)
There are two USB 2.0 connectors (USB0/1) and two USB 3.0 connectors (USB2/3) located on
the I/O back panel. The motherboard also has three front access USB 2.0 headers (USB4/5,
USB6/7, and USB8/9) and one front access USB 3.0 header (USB10/11). The USB12 header is
USB Type A. The onboard headers can be used to provide front side USB access with a cable
(not included).
Table 3-1. Front Panel USB (3.0/2.0) Pinout
Pin Signal Name
1 VBUS
2 IntA_P2_SSRX-
3 IntA_P2_SSRX+
4 GND
5 IntA_P1_SSTX+
6 IntA_P1_SSTX+
7 GND
8 IntA_P1_D-
9 IntA_P1_D+
10 ID
11 IntA_P2_SSDX+
12 IntA_P2_SSDX-
13 GND
14 IntA_P2_SSTX+
15 IntA_P2_SSTX-
16 GND
17 IntA_P2_SSRX+
18 IntA_P2_SSRX-
19 VBus
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