Lenovo ThinkStation P920 Hardware Maintenance Manual page 40

1 Power cord connector
Connect the power cord to your computer for power supply.
2 Audio line-out connector
The audio line-out connector is used to send audio signals from the computer to external devices, such as
headphones.
3 Microphone connector
Use this connector to attach a microphone to your computer when you want to record sound or if you use
speech-recognition software.
4 Serial connector (available on some models)
Connect an external modem, a serial printer, or other devices that use a 9-pin serial connector to the serial
connector.
5 PS/2 keyboard connector
Use this connector to attach a Personal System/2 (PS/2) keyboard.
6 USB 2.0 connectors (2)
Use this connector to attach a USB-compatible device, such as a USB keyboard, mouse, storage drive, or
printer.
7 USB 3.0 connectors (4)
Use this connector to attach a USB-compatible device, such as a USB keyboard, mouse, storage drive, or
printer.
8 14 PCIe card area
To further improve the computer performance, you can install PCIe cards into this area. Depending on your
computer model, the preinstalled cards might vary.
9 Security-lock slot
Attach a Kensington-style cable lock to the security-lock slot to secure your computer. For more information,
see "Attaching a Kensington-style cable lock" on page 62.
10 Key-nest slots
Install the key holder that comes with the computer cover lock key to the key-nest slots.
11 Ethernet connectors (2)
Connect an Ethernet cable for a local area network (LAN).
Note: To operate the computer within Federal Communications Commission (FCC) Class B limits, use a
Category 5 Ethernet cable.
12
PS/2 mouse connector
Use this connector to attach a PS/2 mouse, a trackball, or other pointing devices.
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P920 Hardware Maintenance Manual