Back
1 Back panel
Connect USB, audio, video, and other devices.
2 Expansion-card slots
Provide access to ports on any installed PCI Express cards.
3 Power port
Connect a power cable to provide power to your computer.
4 Power-supply diagnostic light
Indicates the power-supply state.
5 Padlock rings
Attach a standard padlock to prevent unauthorized access to the interior of
your computer.
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