Buffalo HD-PHSXXU2-UC Quick Setup Manual page 9

USB Power Adapter Cable
A USB to 5 volt power adapter is included with the MiniStation. If your
MiniStation isn't getting sufficient power from the USB port it's plugged
into, you can plug this cable into an additional USB port for extra power.
Mobile Assist Cable
Connecting the MiniStation: Please connect
the Mobile Assist Cable to the MiniStation
before plugging it into your computer or
USB hub.
Disconnecting the MiniStation: When
you wish to disconnect and remove the
MiniStation, unplug the Mobile Assist
Cable from the computer's USB port
before unplugging it from the MiniStation.
If your USB ports cannot supply enough
consistent 5v power for best performance
from your MiniStation, try the optional
accessory Mobile Assist Cable, available from
Buffalo Technology (www.buffalotech.com). It
smooths and strengthens voltage, letting the
MiniStation operate normally even if power
quality from the USB port is marginal.
Note: After connecting the Mobile Assist
Cable, the Power Booster takes approximately
10-20 seconds to fully charge. Once it is
charged it will turn on the MiniStation.

Power Boosters