About this item Safety: UL Listed. This item is up to UL's nationally recognized standards for high-level electronic safety. Fit for Vivobook 17 M712 M712D M712DA M712DK M712DA-WH34 Laptop [Do not buy if your laptop requires more than 2.37A]. Output: 19V 2.37A 45W Input: 100-240V Package Includes: 1 X Power Adapter. Dimensions: 2.37 x 2.37 x 1.06 inches.