POWER SPECS - Output Max: 65W 15V 4A Input Volt Range: 110-240V/50/60Hz Original Surface Charger Laptop AC Adapter Power Cord Replacement by Ostrich.PRODUCT SAFETY - The Leading American Consumer Product Testing Laboratory, Lists This Ostrich Product as Meeting Their Standards for Electrical Safety and Design in The United States and Canada. OUR GUARANTEE - As a Professional Notebook Power Supplier, Our Products are in Compliance with Top Industry Standards, Include Numerous Safety Mechanisms, Including Protection Against Short Circuiting, Overvoltage, Overcurrent, and Internal Overheating. That’s Why We Offer an Industry-Leading Return and Exchange Policy: Within 30 Days of Purchase. Additionally, LIFETIME from The Date of Purchase, We Will Exchange Your Product Should it Become Defective.PORTABLE DESIGN - One Adapter for Many Models of Surface Laptop and Tablet While Could Charge Other Devices At the Same Time. And the Weight is So Light Which is An Incredibly Small Footprint the Surface 65W AC Travel Adapter Slips into Bags, Purses and Even Pockets with Ease While You Go Anywhere.