![QDI XT4500 Series Manual Download Page 14](http://html1.mh-extra.com/html/qdi/xt4500-series/xt4500-series_manual_765161014.webp)
Chapter 2
XT4500
9
USB3, USB4 Connector(FUSB3_4)
Besides USB1,2 on the back panel, XT4500 series of mainboards also have one 10-pin
headers on board which may connect to front panel USB cable( optional ) to provide addi-
tional two USB ports. .
Audio Connector (CD_IN)
CD_IN is Sony standard CD audio connector, it can be connected to a CD-ROM drive
through a CD audio cable.
CD_IN
CD Right Channel
Common
CD Left Channel
FUSB3_4
1
+5V
USB0+
USB0-
GND
CUT
GND
USB1-
USB1+
+5V
GND