Lenovo ThinkCentre M910s User Manual And Hardware Maintenance Manual page 6

Overview
PS/2 mouse connector (optional)
7
Used to connect a mouse, a trackball, or other pointing devices
that use a PS/2 mouse connector.
PS/2 keyboard connector (optional)
8
Used to connect a keyboard that uses a Personal System/2
(PS/2) keyboard connector.
Serial connector
9
Used to connect an external modem, a serial printer, or other
devices that use a serial connector.
Ethernet connector
10
Used to connect an Ethernet cable for network access.
Security-lock slot
11
Used to secure a Kensington-style cable lock.
Padlock loop
12
Used to secure a padlock.
PCI-Express card area (different cards provide
13
different connectors)
To improve the operating performance of the computer, you
can connect PCI-Express cards into this area. Depending on the
computer model, the connectors in this area might vary.
Power cord connector
14
Used to connect the power cord to your computer for power
supply.
6