Lenovo ThinkCentre M79, Hardware Maintenance Manual

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Connector Description
Audio line-in connector
Used to receive audio signals from an external audio device, such as a stereo
system. When you attach an external audio device, a cable is connected between
the audio line-out connector of the device and the audio line-in connector of the
computer.
Audio line-out connector
Used to send audio signals from the computer to external devices, such as powered
stereo speakers (speakers with built-in amplifiers), headphones, or multimedia
keyboards. To attach a stereo system or other external recording device, a cable is
connected between the audio line-in connector of the device and the audio line-out
connector of the computer.
DisplayPort connector Used to attach a high-performance monitor, a direct-drive monitor, or other devices
that use a DisplayPort connector.
Ethernet connector
Used to attach an Ethernet cable for a local area network (LAN).
Note: To operate the computer within FCC Class B limits, use a Category 5, 5e, or
6 Ethernet cable.
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
(available on some models) Used to attach a keyboard that uses a Personal System/2 (PS/2) keyboard
connector.
PS/2 mouse connector
(available on some models) Used to attach a mouse, a trackball, or other pointing devices that use a PS/2
mouse connector.
Serial connector Used to attach an external modem, a serial printer, or other devices that use a
9-pin serial connector.
USB 2.0 connector Used to attach a device that requires a USB 2.0 connection, such as a keyboard, a
mouse, a scanner, a printer, or a personal digital assistant (PDA).
USB 3.0 connector Used to attach a device that requires a USB 2.0 or 3.0 connection, such as a
keyboard, a mouse, a scanner, a printer, or a personal digital assistant (PDA). A
USB 3.0 connector provides high transmission speeds to reduce the time that is
required for data transmission.
VGA connector Used to attach a VGA monitor or other devices that use a Video Graphics Array
(VGA) connector.
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ThinkCentre M79 Hardware Maintenance Manual