Toshiba Satellite P875 - Manual (Page 107)

When Sleep and Charge function is enabled, USB bus power (DC5V)
will be supplied to compatible ports even when the power of the
computer is turned OFF. USB bus power (DC5V) is similarly supplied
to the external devices which are connected to the compatible ports.
However, some external devices cannot be charged solely by
supplying USB bus power (DC5V). As for the specifications of the
external devices, please contact the device manufacturer or check the
specifications of the external devices thoroughly before use.
Using the sleep and charge function to charge external devices will
take longer than charging the devices with their own chargers.
If Sleep and Charge function is enabled, the computer’s battery will
discharge during hibernation or when the computer is turned off. It is
recommended that you connect the AC adaptor to the computer when
enabling the Sleep and Charge function.
External devices connected to the USB bus power (DC5V) function
that interfaces with the power ON/OFF of the computer may always be
in an operational state.
When there is a current overflow of the external devices connected to
the compatible ports, USB bus power (DC5V) supply may be stopped
for safety reasons.
When Sleep and Charge function is enabled, the USB Wakeup
function does not work for compatible ports. In that case, if there is a
USB port that does not have the Sleep and Charge function, attach
the mouse or keyboard to it. If all USB ports have the Sleep and
Charge function, change to disable Sleep and Charge function. The
USB Wakeup function will now work, but the Sleep and Charge
function will be disabled.
Metal paper clips or hair pins/clips will generate heat if they come into
contact with USB ports. Do not allow USB ports to come into contact with
metal products, for example when carrying the computer in your bag.
Sleep and Music
Your can use your computer’s speaker for the portable audio device, even
when the power of the computer is turned OFF.
"Power OFF" includes Sleep Mode, Hibernation Mode or shutdown state.
The Microphone jack supports the Sleep and Music function.
When Sleep and Music function is enabled, it is not possible to mute
sound from the speaker even by connecting headphones to the
Headphone jack. There is also no sound from the headphone.
P870/P875
User's Manual 4-8