This Chicony power supply AC adapter charger is a reliable and efficient choice for your laptop. It has a voltage of 19V and output current of 2.1A, providing a total power of 40W. This adapter is compatible with various brands such as Dell, HP, Lenovo, Asus, and Acer, making it a versatile option for different laptops. The adapter is designed for use with laptops and is perfect for those who need a replacement or spare adapter. Its compact and lightweight design makes it easy to carry around, while its durable construction ensures that it will last for a long time. With this Chicony power supply AC adapter charger, you can be sure that your laptop will always have a reliable and efficient power source.