Oneda 130W 19.5V 6.7A AC / DC Power Adapter Laptop Charger for Dell Studio 1 Input Voltage: AC 100-240V, Total output power: 130W, Output Voltage: DC 19.5V, Output current: 6.7A (45W, 65W, 90W Compatible) Improve the service guarantee, Satisfaction guaranteed and backed by a one year replacement warranty. Oneda new high-quality power supply adapter, a good reputation, as has always insisted on manufacturing quality products. Reliable circuit board design: overcurrent, overvoltage, overload, temperature and short circuit protection. Core security components, multiple protection and safer. Comprehensive environmental testing: to ensure the safety of products, apart from the strict implementation of 72 hours aging test, the test must also deal with a variety of physical and destruction, 100% quality assurance testing.