1Security cable slot — Attaches a commercially available antitheft device to the computer.
2Padlock rings — Attaches to a standard padlock to prevent unauthorized access to the interior of your computer,
3Power connector — Connects to the power cable. Appearance of this connector may vary.
4Voltage selector switch — Allows to select the voltage rating appropriate for your region.
Using Your Inspiron Desktop
5Power supply light — Indicates power availability on the power supply unit.
NOTE: The power supply light may not be available on all computers.
6Expansion card slots — Provide access to connectors on any installed PCI and PCI express cards.
7Back panel connectors — Connect USB, audio, and other devices into the appropriate connectors.
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