40 Watt 40W Universal Mini Laptop Netbook Notebook AC Adapter Power Cord Automatic Voltage Adjustment 9.5V 12V 18.5V 19V 20V 5 Tips Kentek 5 convertible plug tips ensure proper polarization and fit Automatically selects/ adjusts among 5 voltage output levels to provide a broad mobile power solution 9.5V 12V 18.5V 19V 20V Compatible with most laptop notebook netbook computers from Acer, Asus, Samsung, Lenovo and HP and more Lightweight and compact design easily stores for travel Overload, overcurrent and overheat protection