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Locating connectors 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.
Figure 2. Rear connector locations
1 Power cord connector 9 Microphone connector
2 Serial port (Serial port 1)
10 Audio line-out connector
3 PS/2 keyboard and mouse connectors
(optional)
11 Audio line-in connector
4 VGA monitor connector 12 PCI Express x16 graphics card slot
5 DisplayPort connector
13 PCI Express x1 card slot
6 USB 3.0 connectors (USB ports 5 to 8) 14 PCI card slots (2)
7 USB 2.0 connectors (USB ports 3 and 4) 15 Cable lock slots (2)
8 Ethernet connector
16 Optional serial port (Serial port 2)
Connector Description
Audio line-in connector
Used to receive audio signals from an external audio device, such as a stereo
system. When you attach an external audio device, a cable is connected between
the audio line-out connector of the device and the audio line-in connector of the
computer.
Audio line-out connector
Used to send audio signals from the computer to external devices, such as powered
stereo speakers (speakers with built-in ampliers), headphones, multimedia
keyboards, or the audio line-in connector on a stereo system or other external
recording device.
10 ThinkCentre User Guide