Genuine Boston Acoustics 12V 3000mA 45VA AC Power Adapter DM1203A0-1AN.Model Number: DM1203A0-1ANSpecifications:Input: 115VAC ~ 60Hz 45VAOutput: 12VAC - 3000mAConnector: 6.0mm (outside) / 2.5mm (center) / 8.0mm (length)