Nvidia NFORCE 780I SLI - Manual (Page 29)

Hardware Installation
NVIDIA Corporation
October 17, 2007 | DU-03597-001_v01 19
USB Headers
This motherboard contains six (6) 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) 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
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
9
7
5
3
1 10
8
6
4
2