Acer Aspire S7-391 - Manual (Page 10)

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# Icon Item Description
1 2-in-1 card reader
Accepts one Secure Digital (SD or
SDHC) card or MultiMediaCard (MMC).
Note: To remove the card, simply pull it
from the slot.
2 USB port
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).
3
USB port with power-
off chargin
Information on USB 3.0
• Compatible with USB 3.0 and earlier devices.
• For optimal performance, use USB 3.0-certified devices.
• Defined by the USB 3.0 specification (SuperSpeed USB).
• Supports power-off USB charging, allowing you to charge supported
mobile devices while the notebook is switched off.