The 19V 2.37A 4.0*1.35mm Charger Power Supply Original AC Laptop Adapter is a high-quality power adapter designed for Asus laptops. It offers efficient power supply, compact and lightweight design, and multiple safety features. Compatible with Asus models such as UX21A, UX31A, UX32A, UX32V, UX32VD, and UX21A-DB5x.