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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
10 PCI Express x16 graphics card slot
2 Serial port (Serial port 1) 11 PCI Express x1 card slot
3 VGA monitor connector 12 PCI card slots (2)
4 DisplayPort connector
13 Optional serial port (Serial port 2)
5 USB 3.0 connectors (USB ports 5 to 8) 14 Cable lock slots (2)
6 USB 2.0 connectors (USB ports 3 and 4)
15 Ethernet connector
7 Microphone connector
16 Integrated cable lock (Kingston lock) slot
8 Audio line-out connector
17 Cover-release button
9 Audio line-in connector
18 PS/2 keyboard and mouse connectors (optional)
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