This model is a universal switching-mode power supply for Laptop, operation at input AC 100V to 240V 47-63Hz, Output: USB:5V2A, DC 7 Voltages: 12V/15V16V/18V/19V/20V/24V, output current 4.5Amp max, output power 90 Watt max, with protection functions: Overload protection, short Circuit Protection, power supply by mains supply. With 8PCS tip connecter to suit to main Laptops, Select output voltage to suit to Laptop and make sure the polarity of tips connect correct before use.
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