Product Type: Input: AC 100-240V 50-60HZ; Output: 19V 3.42A 65W Connector Size: External diameter: 5.5 mm Interior diameter: 2.5 mm; (Note: Please make sure the DC output and tip size of ac adapter are accordant before you buy) CE/FCC/ROHS Certified, 100% Compatible Safety - All of our product lines are put through rigorous quality control procedures to ensure safe, reliable operation for years to come. In addition, our products are in compliance with top industry standards, and include numerous safety mechanisms, including protection against short circuiting, overvoltage, overcurrent, and internal overheating Warranty: 12 Months warranty, 30 days money return guarantee, 24hrs/ 7 days customer support. Package Includes: one power cord and one adapter charger