1Power connector — Connects to the power cable. Appearance of this connector may vary.
2Voltage selector switch — Allows to select the voltage rating appropriate for your region.
3Power supply light — Indicates power availability on the power supply unit.
NOTE: The power supply light may not be available on all computers.
Using Your Inspiron Desktop
4Back panel connectors — Connect USB, audio, and other devices into the appropriate connectors.
5Expansion card slots — Provide access to connectors on any installed PCI and PCI express cards.
6Padlock rings — Attaches to a standard padlock to prevent unauthorized access to the interior of your computer.
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