Laptop Network Adapters
Input voltage (INPUT): 100-240V 50-60Hz
Output voltage (output): DC 9V -0.5A, 1A, 2A, 3A
Output (maximum power output): 4.5W, 9W, 18W, 27W
Length 1m
Polarity: positive inside, negative outside.
DC plug: 5.5*2.5MM. (compatible with 5.5-2.1MM), 4.0-1.7MM, 3.5-1.35MM, 2.5-0.7MM.

Application: Power adapter