Asus Audio Card Xonar D2X - Manual (Page 5)

5 ASUS Xonar D2X Quick Installation Guide
English
1.4 Connecting speakers
For Analog Spakers
2 Speakers
This audio card comes with LEDs in different colors that defines each port.
MIC In Red
Line In
Front Out
Side Surround
Center & Subwoofer
Back Surround
SPDIF In
SPDIF Out
Blue
Green
Orange
White
Amber
No LED
No LED
LED color definition