13USB 2.0 connectors (6) Use the back USB connectors for devices that typically remain connected, such as printers and keyboards.

 

 

It is recommended that you use the front USB connectors for devices that you

 

 

connect occasionally, such as joysticks or cameras.

 

 

 

14

keyboard connector

If you have a standard keyboard, plug it into the purple keyboard connector. If you

 

 

have a USB keyboard, plug it into a USB connector.

 

 

 

15

mouse connector

Plug a standard mouse into the green mouse connector. Turn off the computer and

 

 

any attached devices before you connect a mouse to the computer. If you have a USB

 

 

mouse, plug it into a USB connector.

 

 

 

16

diagnostic lights (4)

Use the lights to help you troubleshoot a computer problem based on the diagnostic

 

 

code. For more information, see "Diagnostics Lights" on page 49.

 

 

 

17

serial connector

Connect a serial device, such as a handheld device, to the serial port.

 

(COM 2)

 

 

 

 

18

parallel connector

Connect a parallel device, such as a printer, to the parallel connector. If you have a

 

 

USB printer, plug it into a USB connector.

 

 

 

19

serial connector

Connect a serial device, such as a handheld device, to the serial port.

 

(COM 1)

 

 

 

 

Removing and Installing Parts

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Dell XPS manual Removing and Installing Parts