Lenovo 3109, 4743 K430, 10086 manual Line-in connector on a stereo system or other

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, multimedia keyboards, or the audio
	line-in connector on a stereo system or other
	external recording device.
USB connector	Use this connector to attach a device that requires
	a USB connection.
Ethernet connector	Use this connector to attach the computer to an
	Ethernet-type local area network.
VGA connector	Used to attach a VGA monitor or other devices
	that use a VGA monitor connector.
DVI connector	Used to attach a DVI monitor or other devices that
	use a DVI monitor connector.
HDMI connector (optional)	Connects to the HDMI connector on your display
	or TV.
DisplayPort connector	Used to attach a high-performance monitor, a
(optional)	direct-drive monitor, or other devices that use a
	DisplayPort connector.
TV-Tuner connector (optional)	Only supported on systems with optional TV tuner
	card.

Note: If your computer is equipped with a wireless keyboard or mouse, follow the installation instructions for those devices.

User Guide 7