AC DC Adapter for Asus ZenBook Prime UX51Vz, UX51Vz-DH71 Laptops - Replacement Laptop Battery Charger Power Supply Brand New OEM Product / This is a replacement AC Adapter Charger AC Input: 110 ~ 240V 50~ 60Hz / DC Output: 19V 4.74A; DC Connecter size:Internal Diameter: 1.35mm,External Diameter: 4.0mm. Please ensure the DC output and connector size matches your original adapter before purchasing Warranty: 30 Days Money Back Guarantee / 18 Months - Free Exchange Package Includes: One AC Adapter Charger and One US Power Cord for Listed Models