This is a used Palm Model PLM05A-050 UL Listed AC to DC Adapter/Power Supply
part number 180-0711B. I am not sure what model phone this came from. The input
is rated at 120 VAC 0.150 60Hz. The output is rated at 5 Volt DC 1 Amp. The
connector’s center pin is positive and the outer sleeve is negative.
Before purchasing this item please make sure it is the correct power supply
for your application as the wrong one could damage your unit. If you have any
questions, please email us. This power supply is sold AS-IS but it has been
tested and guaranteed not to be DOA for thirty days from the date of our invoice.