Nvidia NFORCE 680I - Manual (Page 29)

USB Headers (Universal Serial Bus)
This motherboard contains four USB
2.0 ports that are exposed on the rear
panel of the chassis. The motherboard
also contains two 10-pin internal
headers that can be used to connect
an optional external bracket containing
four more 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
20
Installing and Configuring the BFG NVIDIA nForce 680i LT SLI Motherboard
Connector Pin Signal Pin Signal
9
7
5
3
1
10
8
6
4
2
USB 2.0 Header
Connector
1 5V_DUAL 2 5V_DUAL
3 D- 4 D-
5 D+ 6 D+
7 GND 8 GND
9 Empty 10 No Connect Connect