Alternatively called audio out and sound out, the line out jack is found on computer sound cards. It allows external speakers, headphones, or other output devices to connect to the computer, transferring computer generated audio to the devices so that it can be heard.

The picture shows a green line out port represented as an arrow pointing out of sound waves on the back of a desktop computer sound card. For laptops, smartphones, tablets, and other devices the line out is the only hole big enough for a Mini Plug cable.

Connect, Line in, Output, Sound card, Sound terms, Speakers

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