Acer Aspire 4750ZG - Manual (Page 11)

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# Icon Item Description
1 Microphone jack Accepts inputs from external microphones.
Headphones/speaker
jack Connects to audio devices (e.g., speakers,
headphones).
Note: Supports compatible 3.5 mm
headsets with built-in microphone (e.g.
Acer smart handheld headsets).
2 USB 2.0 / 3.0* port Connects to USB devices.
* A USB 3.0 port can be distinguished by its
blue connector (for certain models only).
* Supports the USB 3.0 (SuperSpeed USB)
specification; Devices without USB 3.0
certification may not be compatible.
3 Optical drive Internal optical drive; accepts CDs or DVDs.
4 Optical disk access
indicator Lights up when the optical drive is active.
5 Optical drive eject
button Ejects the optical disk from the drive.
6 Emergency eject hole Ejects the optical drive tray when the
computer is turned off.
Note: Insert a paper clip to the emergency
eject hole to eject the optical drive tray
when the computer is off.
7 Kensington lock slot Connects to a Kensington-compatible
computer security lock.
Note: Wrap the computer security lock
cable around an immovable object such as
a table or handle of a locked drawer.
Insert the lock into the notch and turn the
key to secure the lock. Some keyless
models are also available.
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