Parameters: Input: 100-240V, 50-60Hz; Output: 19.5V 7.7A 150W, 7.4*5.0mm-Tip. Perfectly compatible with HP 19.5V 6.15A 120W. (Do not buy if your laptops more than 150W). Compatibility: Compatible with HP Thunderbolt Dock 120W G2 2UK37AA 2UK37AA#ABA; HP Thunderbolt Dock 120W G4 4J0A2AA 4J0A2AA#ABA; HP Thunderbolt Dock G2 HSN-IX01; HP Envy DV4 5300 DV6 7300 DV7 7000 7300 EliteBook 8460W 8560W. Safety Standards: Complies with U.S. safety standards for electronic equipment. Strict industrial manufacturing process gives the charger a longer life. What You Get: A replacement for the hp 150w ac adapter, a high quality cable. Service: 7x24 online support, 12 months product repair service.