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Power indicator The Power indicator normally glows white when
the computer is turned on. However, if you turn
the computer off into Sleep Mode, this indicator
will blink amber - approximately two seconds on,
two seconds off.
Wireless
communication
indicator
The Wireless communication indicator glows
amber when the Bluetooth, Wireless LAN or
Wireless WAN functions are turned on.
Only some models are equipped with Bluetooth
and Wireless LAN functions.
Some models are equipped with a Wireless WAN
module.
Memory media slot This slot lets you insert an SD™/SDHC™/
SDXC™ memory card, miniSD™/microSD™
Card, Memory Stick™ (PRO™) and
MultiMediaCard™. Refer to the Memory media
section for more information.
Keep foreign metal objects, such as screws, staples and paper clips, out of
the Memory media slot. Foreign metal objects can create a short circuit,
which can cause damage and fire, possibly resulting in serious injury.
Left side
The following figure shows the computer’s left side.
Figure 3-2 The left side of the computer
1 2
3 3
1. Security lock slot 3. Universal Serial Bus (USB 3.0) ports
2. LAN jack
Security lock slot A security cable can be attached to this slot and
then connected to a desk or other large object in
order to deter theft of the computer.
Satellite U840W series
User's Manual 3-2