Back panel
Connect USB, audio, video, and other devices.
PCI-Express X16 (graphics slot 1)
Connect a PCI-Express card such as graphics, audio, or network card to enhance the capabilities of your computer.
For optimal graphics performance, use a PCI-Express X16 slot for connecting the graphics card.
PCI-Express X4 slot
Connect a PCI-Express card such as graphics, audio, or network card to enhance the capabilities of your computer.
PCI-Express X4 slot
Connect a PCI-Express card such as graphics, audio, or network card to enhance the capabilities of your computer.
Power port
Connect a power cable to provide power to your computer.
Power-supply diagnostics light
Indicates the power-supply state.
Connect the external antenna cables to the SMA connectors on your computer.
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.
Padlock rings
Attach a standard padlock to prevent unauthorized access to the interior of your computer.
Security-cable slot (for Kensington locks)
Attach a security cable to prevent unauthorized movement of your computer.