The AC Power Adapter is a 90W power adapter specifically designed for HP laptops. It operates on a voltage range of 100-240V and 50-60HZ AC, making it suitable for use in various countries. With a maximum output power of 90W and a voltage of 19V, this black adapter is compatible with HP Presario, Pavilion, and Evo laptops. Made in China, this power adapter ensures reliable and efficient power supply for your laptop while on the go.