Dell E521 specifications Back to Contents

		network speed to 10 Mbps to ensure reliable operation.
3	network activity	Flashes a yellow light when the computer is transmitting or
	light	receiving network data. A high volume of network traffic may make
		this light appear to be in a steady "on" state.
4	surround	Use the black surround connector to attach multichannel-capable
	connector	speakers.
5	line-in connector	Use the blue line-in connector to attach a record/playback device
		such as a cassette player, CD player, or VCR.
		On computers with a sound card, use the connector on the card.
6	line-out connector	Use the green line-out connector (available on computers with
		integrated sound) to attach headphones and most speakers with
		integrated amplifiers.
		On computers with a sound card, use the connector on the card.
7	microphone	Use the pink connector to attach a personal computer microphone
		for voice or musical input into a sound or telephony program.
		On computers with a sound card, the microphone connector is on
		the card.
8	side surround	Use the silver connector to provide enhanced surround audio for
	connector	computers with 7.1 speakers.
		On computers with a sound card, the microphone connector is on
		the card.
9	center/subwoofer	Use the yellow connector to attach a speaker to a Low Frequency
	connector	Effects (LFE) audio channel.
10	USB 2.0 connectors	Use the back USB connectors for devices that typically remain
	(4)	connected, such as printers and keyboards.
		It is recommended that you use the front USB connectors for
		devices that you connect occasionally, such as joysticks or cameras.
11	VGA video	Connect the monitor's VGA cable to the VGA connector on the
	connector	computer.
		On computers with a video card, use the connector on the card.
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