Acer Aspire S7-391 - Manual (Page 9)

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# Icon Item Description
1 microSD card reader
Accepts one microSD Card.
Note: Push to remove/install the card.
Only one card can operate at any given
time.
2 Headset/speaker jack
Connects to audio devices (e.g.,
speakers, headphones) or a headset with
microphone.
3
USB port with power-
off chargin
Connects to USB devices.
If a port is black it is USB 2.0 compatible,
if it is blue it is also USB 3.0 compatible
(see below).
4
Extended battery
securing location Secures the optional extended battery in
place.