Ultra-quiet & clean audiophile-grade power. Cancels all incoming EMI or RFInoise. Input: AC 100-240VAC Output: 5V/2.5A, 9V/2.0A, 12V/1.8A, 15V/1.2A Input/Output: 5.5 x 2.1mm(adapters for 5.5×2.5mm and 3.5×3.5×1.35mm included)