Dell OptiPlex GX280 - Manual (Page 7)

Quick Reference Guide
7
Front and Back Views
Small Form-Factor Computer
USB 2.0
connectors (2)
CD/DVD-drive activity light
floppy-drive eject button
power button
power light
headphone
connector
hard-drive activity light
Microsoft
Windows
Product Key
CD/DVD-drive eject button
card slots (2)
diagnostic lights
power
connector
serial connector USB 2.0 connectors (6)
microphone connector
network activity light
link integrity light
network adapter connector
video connector
line-in connector
parallel connector
line-out connector