Dell XPS 720 (Mid 2007) - Manual (Page 155)

Removing and Installing Parts
155
Front I/O Panel
Front I/O-Panel Components
1 external IEEE 1394 port 2 external USB ports (2) 3 power, diagnostics, hard drive,
and network activity LEDs
4 headphone connector 5 microphone connector 6 internal front panel I/O
connector
7 bottom LED connector 8 top LED connector 9 internal USB connector
10 power button connector 11 internal 1394 connector 12 internal audio interface
connector
3
4
5
2
1
12
8
7
6
9
11
10