HP 721953-BA1 ユーザーズマニュアル

Audio-out (headphone) jack

Produces sound when connected to optional powered stereo
speakers, headphones, earbuds, a headset, or television audio.

To reduce the risk of personal injury, adjust the

volume before putting on headphones, earbuds, or a headset.
For additional safety information, see the Regulatory, Safety,
and Environmental Notices. To access the user guides in
Windows 8, select the HP Support Assistant app on the Start
screen, select My computer, and then select User guides.

When a device is connected to the jack, the computer

speakers are disabled.

Audio-in (microphone) jack 

Connects an optional computer headset microphone, stereo
array microphone, or monaural microphone.

USB 2.0 ports (2)

Connect optional USB devices.

 

Optical drive (select models only)

Reads and writes (select models only) to an optical disc.

 

Optical drive eject button (select models only)

Releases the optical drive disc tray.

Security cable slot

Attaches an optional security cable to the computer.

The security cable is designed to act as a deterrent, but

it may not prevent the computer from being mishandled or
stolen.

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