SIIG's Ultra-Compact Universal Laptop Power Adapter - 45W is a high efficiency universal laptop power adapter/charger designed to power your laptop and charge its internal battery at the same time. It includes 6 self-regulating adapter tips to auto-adjust output voltage, safely supporting many compatible popular brands of laptop or Ultrabook computers including ASUS, Acer, Dell, HP, Lenovo, Fujitsu and more. Built-in protections are provided to protect your device and the charger itself against sudden power surge. And a convenient USB charging port (5V/2A) is also integrated to allow fast charging any USB powered device simultaneously. This elegant and modern looking power adapter is lightweight and ultra-slim to be stored and carried. It is a reliable and versatile universal power adapter to replace your original adapter or to use it as a backup traveling accessory while on-the-go.