Kentek 90 Watt 90W Universal Laptop Notebook AC Adapter Power Cord Automatic Voltage Aadjustment 15V 16V 18.5V 19V 19.5V 8 Tips for Acer, Asus, Compaq, Dell, HP, Lenovo, Toshiba and more 8 convertible plug tips ensure proper polarization and fit Automatically selects/ adjusts among 5 voltage output levels to provide a broad mobile power solution from 15 to 19.5 V Compatible with most laptop notebook computers from Acer, Asus, Compaq, Dell, HP, Lenovo, Toshiba and more Lightweight and compact design easily stores for travel Overload, overcurrent and overheat protection