Asus Xonar U3 - Hardware Introduction

4 ASUS Xonar U3
6. Hardware introduction
Xonar U3 external USB audio card layout
1. Light indicator
3
2
1
Description Status
Play music (not Mute) LED on
Play music (Mute) LED off
Idle (not Mute) LED on
Idle (Mute) LED off
2. Headphone & S/PDIF-Out port
3. Mic & Line-in port