*Brand New, Input: AC 100-240V, 50-60Hz, Output: 19V 3.42A, 100% compatible with the OEM *Compatible for: ASUS P50I U45J U50F U52F U81A X8AC ADP-65HB BB U52F-BBL5 S56CB F555UA F555UA-EH71 R510CA-RB31 *Intelligent Security Technology. Multi Protect- Short Circuit Protection - High Quality Raw Materials; Over Temperature Protection - Over Voltage Protection; Low Ripple and Noise-Over Current Protection *Warranty & Service: 30 Days Money Back Guarantee/12 Months Warranty. CE/FCC/RoHS certified for security, 100% compatibility with the OEM. *Best customer service. We value our customers so that if you have a problem we are always here to offer help. Any problems please contact us.