Certified Safety-- Safety: This item is up to nationally recognized standards for high-level electronic safety. Flawless Compatibility-- Exclusively designed to fit ALL HP laptops of 45W with round power connector. After-sales services: This product is eligible for replacement or returns within 30 days, and the manufacturer provides an additional 12 Months Guarantee. In the Box-- 1 X Replacement for HP Laptop Charger, 1 X Power Cable Other Specs-- Output: 19.5V 2.31A 45W, Input:100-240V