Lenovo 3000 J Series - Manual (Page 36)

Locating the connectors on the rear of your computer
The following illustration shows the locations of the connectors on the rear of the
computer.
1 Power connector 9 Ethernet connector
2 Voltage-selection switch (some
models)
10 USB connectors
3 Mouse connector 11 Microphone connector
4 Keyboard connector 12 Audio line out connector
5 Serial connector 13 Audio line in connector
6 Parallel connector 14 PCI Express x1 or PCI Express x16
graphics adapter connector (some models)
7 VGA monitor connector 15 PCI Express x1 or PCI Express x16
graphics adapter connector (some models)
8 USB connectors 16 PCI adapter connector
Note: Some connectors on the rear of the computer are color-coded to help you
determine where to connect the cables on your computer.
18 User Guide