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Indicates the power-supply state.
7. Integrated external SMA antenna connectors
Connect the external antenna to improve the memory performance of your computer.
8. Service Tag label
The Service Tag is a unique alphanumeric identifier that enables Dell service technicians to identify the hardware components in
your computer and access warranty information.
9. Padlock rings
Attach a standard padlock to prevent unauthorized access to the interior of your computer.
10. Side panel release latch
Pull the latch to quickly release the side panel from your computer.
11. Security-cable slot (for Kensington locks)
Connect a security cable to prevent unauthorized movement of your computer.
Back panel
1. Hard-drive activity light
The activity light turns on when the computer reads from or writes to the hard drive.
2. Optical S/PDIF port
Connect an amplifier, speakers, or a TV for digital audio output through an optical cable.
3. Rear L/R surround port
Connect audio-output devices such as speakers and amplifiers. In a 5.1 or 7.1 speaker channel setup, connect the rear-left and
rear-right speakers.
4. Side L/R surround port
Connect audio-output devices such as speakers and amplifiers. In a 7.1 speaker channel setup, connect the side-left and
side-right speakers.
5. Microphone port
Connect an external microphone to provide sound input.
6. USB 2.0 ports (2)
Connect devices such as external storage devices and printers. Provides data transfer speeds up to 480 Mbps.
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