Since its inception acer has evolved from a manufacturing powerhouse to a globally recognized computer brand marketing world class it products and services acers complete range of it products is designed to enhance work efficiency and quality of life while granting an easy hassle free user experience spec output power 65 w output current 342 a input frequency 5060 hz output voltage 19 v input voltage 100 240 v capacity 65 w compatible with aspire 4315 4715 extensa 4120 4220 4420