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Locating connectors, controls, and indicators on the rear of your
computer
Figure 2 “Rear connector locations” on page 10 shows the locations of the connectors on the rear of your
computer. Some connectors on the rear of your computer are color-coded to help you determine where to
connect the cables on your computer.
Figure2. Rear connector locations
1 Brightness-up control (computer mode) 8 Serial port
2 Brightness-down control (computer mode)
9 Ethernet connector
3 USB connector 1
10 Power connector
4 Microphone connector
11 Integrated cable lock (Kensington lock) slot
5 Headphone connector
12 Optical drive eject/close button
6 USB connector 2
13 Ventilation slots
7 USB connectors (USB ports 3 to 6)
Connector Description
Ethernet connector
Used to attach an Ethernet cable for a local area network (LAN).
Note: To operate the computer within FCC Class B limits, use a Category 5 Ethernet
cable.
Microphone connector
Used to attach a microphone to your computer when you want to record sound or if
you use speech-recognition software.
Serial port
Used to attach an external modem, a serial printer, or other devices that use a
9-pin serial port.
10 ThinkCentre Edge User Guide