Safety: UL Listed. This item is up to UL's nationally recognized standards for high-level electronic safety. Fit for Asus Fit for Asus L510MA L510M L510, Chromebook C301S C301SA C301 C301SA-DB04 L510MA-DS04 Laptop [Do not buy if your laptop requires more than 1.75A]. After-sales services: This product is eligible for replacement or returns within 30 days, and the manufacturer provides an additional 12 Months Guarantee Output: 19V 1.75A 33W Input:100-240V Package Includes:1 X Power Adapter, 1 X Power cord.