EVGA X58 3X SLI - Manual (Page 28)

USB Headers
This motherboard contains eight (8) USB 2.0
ports that are exposed on the rear panel of the chassis
(Figure 2). The motherboard also contains two 10-pin
internal header connectors onboard that can be used to
connect an optional external bracket containing four (4)
USB 2.0 ports.
1. Secure the bracket to either the front or rear panel
of your chassis (not all chassis are equipped with the
front panel option).
2. Connect the two ends of the cables to the USB 2.0
headers on the motherboard.
Table 4. USB 2.0 Header Pins
Connector Pin Signal
1 5V_DUAL
3 D-
5 D+
7 GND
9 Empty
Pin Signal
2 5V_DUAL
4 D-
6 D+
8 GND
USB 2.0 Header Connector
10 No Connect