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1 Hard disk drive activity indicator
5 USB 2.0 connector (USB port 1)
2 Power indicator 6 Headphone connector
3 Power switch 7 Microphone connector
4 Optical drive eject/close button 8 USB 2.0 connector (USB port 2)
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 Audio line-out connector
2 Serial port (Serial port 1)
11 Audio line-in connector
3 PS/2 keyboard and mouse connectors
(optional)
12 PCI Express x16 graphics card slot
4 VGA monitor connector 13 PCI Express x1 card slot
5 DisplayPort connector 1
14 PCI card slots (2)
6 USB 3.0 connectors (USB ports 5 to 8) 15 Cable lock slots (2)
7 USB 2.0 connectors (USB ports 3 and 4) 16 Optional serial port (Serial port 2)
8 Ethernet connector
17 DisplayPort connector 2 (optional)
9 Microphone connector
10 ThinkCentre User Guide