HP 15 - Manual (Page 16)

Left side
Component Description
(1) Security cable slot Attaches an optional security cable to the computer.
NOTE: The security cable is designed to act as a deterrent,
but it may not prevent the computer from being mishandled or
stolen.
(2) Vent Enables airflow to cool internal components.
NOTE: The computer fan starts up automatically to cool
internal components and prevent overheating. It is normal for
the internal fan to cycle on and off during routine operation.
(3) USB 2.0 port Connects an optional USB 2.0 device.
(4) Audio-out (headphone) jack/Audio-in
(microphone) jack Connects optional powered stereo speakers, headphones,
earbuds, a headset, or a television audio cable. The jack does
not support optional microphone-only devices.
WARNING! To reduce the risk of personal injury, adjust the
volume before using headphones, earbuds, or a headset. For
additional safety information, see the Regulatory, Safety and
Environmental Notices.
NOTE: When a device is connected to the jack, the
computer speakers are disabled.
NOTE: Be sure that the device cable has a 4-conductor
connector that supports both audio-out (headphone) and audio-
in (microphone).
8 Chapter 2 External component identification