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White: Computer is on.
Blinking white: Computer is in Sleep mode.
Off: The computer is off.
Audio-out (headphone)/Audio-in (microphone)
Connects optional powered stereo speakers, headphones,
earbuds, a headset, or a television audio cable. Also connects an
optional headset microphone. This jack does not support optional
To reduce the risk of personal injury, adjust the
volume before putting on headphones, earbuds, or a headset.
When a device is connected to the jack, the computer
speakers are disabled.
Be sure that the device cable has 4-conductor connector
that supports both audio-out (headphone) and audio-in
USB 2.0 port
Connect optional USB devices, such as a keyboard, mouse,
external drive, printer, scanner or USB hub.
USB 3.0 charging (powered) port
Connects an optional USB device, such as a keyboard, mouse,
external drive, printer, scanner or USB hub. Standard USB ports
will not charge all USB devices or will charge using a low current.
Some USB devices require power and require you to use a
Connects an optional video or audio device, such as a high-
definition television, any compatible digital or audio component,
or a high-speed High-Definition Multimedia Interface (HDMI)