The HP 90W Slim Combo Adapter with USB is an essential accessory for users on the go. This three - in - one charger is perfect for traveling, providing a maximum output power of 90 W for reliable and efficient charging. It features an Auto/Airline/AC Adapter that allows for convenient charging of your notebook, ensuring maximum usability. With input voltage options of 110 V AC and 220 V AC, this adapter is designed for use in the United States. It delivers a constant 5 V DC output for smooth functioning and charging of devices, making it a dependable choice for various HP notebooks, mobile workstations, and ultrabooks.