User guide

EVGA Classified SR-X Motherboard
20
USB Headers
This motherboard contains four (4) USB 2.0
ports that are exposed on the back panel of
the chassis. It also supports four (4) USB 3.0
ports on the back panel which can operate at
USB 2.0 or USB 3.0 specifications. The
motherboard also contains three 10-pin
onboard header connections that can be used
to connect an optional external bracket
containing six (6) USB 2.0 ports. It also
contains one 19-pin onboard header that can
be used to connect an optional external
bracket containing (2) USB 3.0 ports that are
backwards compatible with USB 2.0.
1. Secure the bracket to either the front or rear panel
of your chassis.
2. Connect the end of the USB cable to the USB 2.0/3.0
headers on the motherboard.
Table 3. USB 2.0 Header Pins
Connector
Pin
Signal
USB 2.0 Header
Connector
1
5V_DUAL
3
D-
5
D+
7
GND
9
Empty
Pin
Signal
2
5V_DUAL
4
D-
6
D+
8
GND
10
No Connect