Lenovo ThinkStation P720 Hardware Maintenance Manual page 39

7 PCI/PCIe card area
To further improve the computer performance, you can install PCI/PCIe cards into this area. Depending on
your computer model, the pre-installed cards in this area might vary.
8 Power-cord connector
Connect the power cord to your computer for power supply.
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 63.
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 Padlock loop
Connect a padlock to secure your computer. For more information, see "Locking the computer cover" on
page 61.
13 PS/2 mouse connector
Use this connector to attach a PS/2 mouse, a trackball, or other pointing devices.
14
Audio line-in connector
The audio line-in connector is used to receive audio signals from an external audio device, such as a stereo
system. When you attach an external audio device, a cable connection is established between the audio line-
out connector of the device and the audio line-in connector of the computer.
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Chapter 2 Product overview
33