System Back View - Dell ChengMing 3977 Tower Owner's Manual

1 Optical drive
3 Hard drive activity light
5 USB 2.0 ports

System back view

1 Power connector port
3 USB 2.0 ports (2)
5 VGA port
7 Line out port
9 PS2 port for mouse
11 Network port
13 Power diagnostic light
6 Removing and installing components
2 Power button and power status light
4 Universal audio jack
6 USB 3.0 ports
2 Power supply diagnostic button
4 PS2 port for keyboard
6 HDMI port
8 Serial port
10 USB 3.0 Ports (2)
12 Expansion card slots
14 Kensington security slot