Oneda 90W 19V 4.74A AC/DC Power Adapter Laptop Charger for Acer Aspire E1, E5, M5, E1-471G, R7-572G, S3-951; Aspire Nitro VN7-571, VN7-5 Input Voltage: AC 100-240V, Total output power: 90W, Output Voltage: DC 19V, Output current: 4.74A (65W, 45W, 40W, 30W 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.