1 headphone
Use the headphone connector to attach headphones and most kinds of speakers.
connector
2 microphone
Use the microphone connector to attach a personal computer microphone for voice or musical input
connector
into a sound or telephony program.
3 USB 2.0
Use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras.
connectors (2)
It is recommended that you use the back USB connectors for devices that typically remain connected,
such as printers and keyboards.
4 IEEE 1394
Use the IEEE 1394 connector to attach high-speed serial multimedia devices, such as digital video
connector
cameras.
5 diagnostic lights
Use the lights to help you troubleshoot a computer problem based on the diagnostic code. For more
(4)
information, see
Back View
"Diagnostic
Lights."