High quality switching 'wall wart' AC to DC 9V 1000mA wall power supply. These are switch mode power supplies which mean the output is regulated to 9V and the capable output current is much higher (1000mA!). Please note, this specific supply (9V/1A) is also FCC/CE certified!
Center-positive 5.5x2.1mm barrel connector.
Works with 100-240VAC inputs.