Input 100V-240V 50/60Hz; Output: 19V 2A 38W. Power supply works for various of devices which ask for a less than 19V 2A 38W power adaptor, Such as 19V 2000mA, 1900mA, 1800mA, 1600mA, 1500mA, 1400mA, 1300mA, 1200mA, 1100mA, 1000mA, 900mA, 800mA, 700mA, 650mA, 600mA, 500mA, 450mA, 400mA, 300mA, 200mA, 2.0A, 1.9A, 1.8A, 1.7A, 1.6A, 1.5A, 1.4A, 1.3A, 1.2A, 1.1A, 1A, 0.9A, 0.8A, 0.7A, 0.6A, 0.5A, 0.4A, 0.3A, 0.2A, DC Plug: 5.5 * 2.1mm 5.5*2.5mm, DC Plug polarity: (Center positive +) with 8 Interchangeable DC Plug size is, 4.0*1.7mm, 4.8*1.7, 5.5*1.7mm, 6.0*3.0mm, 6.0*4.4mm with pin insidem, 3.5*1.35mm, 2.5*0.7mm, LED Terminal Connector, Built-in smart chip, with short circuit, over current, over voltage, over temperature protection, stable circuit design ensuring stable output of voltage and current., Low working temperature, stable performance, strong anti-interference. The card tail of the power output line has passed tens of thousands of tensile tests, and is not easily damaged. The power supply is more durable and the quality is more reliable., Please feel free to buy, each product has gone through strict quality control and repeated testing. If there is any problem, please contact us.