9V, 1A adapter

AC 100V – 240V AC to DC Charger Adapter
Input : 100V-240V 50~60Hz
Output : DC 9V 1A
The power connector outer and inner diameters : 5.5mm x 2.1mm
The connector polarity: inside positive (+) . outside negative (-)
Length of the cable about: 110 cm, 44 inches
USA mains plug