Lenovo ThinkStation 4223, User Manual

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Connector Description
Microphone connector
Used to attach a microphone to your computer when you want to record sound or if
you use speech-recognition software.
PS/2 keyboard connector Used to attach a keyboard that uses a PS/2 keyboard connector.
PS/2 mouse connector Used to attach a mouse, a trackball, or other pointing devices that use a PS/2
mouse connector.
Serial port Used to attach an external modem, a serial printer, or other devices that use a
9-pin serial port.
USB 2.0 connector / USB 3.0
connector Used to attach a device that requires a USB connector, such as a USB keyboard, a
USB mouse, a USB scanner, or a USB printer. If you have more than eight USB 2.0
devices or more than two USB 3.0 devices, you can purchase a USB 2.0 or USB 3.0
hub, which you can use to connect additional USB devices.
Locating components
Figure 3 “Component locations” on page 9 shows the locations of the various components in your computer.
To remove the computer cover, see “Removing the computer cover” on page 30.
Figure 3. Component locations
Chapter 1
.
Product overview
9