Adaptec USBXchange User Manual page 21

External DC Power Supply
If you need an external power source, the USBXchange can use a DC
power jack with 4.5V–9V output voltage and minimum 500 mA output
current.
Polarity:
Note:
Adaptec recommends that you use only UL approved power
supplies. For updated information on recommended power
supplies, see the Read Me file located on the USBXchange
CD-ROM.
Your external DC power jack can be plugged into the DC input jack
connection located on the side of the USBXchange.
U se r's G ui de : US B X ch a ng e
Connect a DC power
jack to the USBXchange
if you need an external
power supply
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