Specification: Input: 100-240V AC, 50-60Hz ; Output: 230W 19.5V 11.8A. Tip size: 4.5mm * 3.0mm Compatible Fit for HP Omen 15 15t 17 17t Series Fit for HP ZBook 17 15 G3 G4 G5 G6 G7 G8 Series Safety & Warranty: 100% compatibility With the Original,and include numerous safety mechanisms, including protection against short-circuiting, overvoltage, overcurrent, and internal overheating. Customer Service: 24 x 7 email support. If you have any doubts, please feel free to contact with us. Package Include: Charger x 1, Ac power cable x 1