SIIG's Ultra-Compact unit 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.

What Wattage Do I Need? A charger with a rating of 65 Watts means that it can deliver 65 Joules of energy in one second. As a result, the more the number of watts, the faster the charging. Using a 45 Watt charger - for example - instead of a 65 Watt charger will take longer to charge.

Features include:

• High efficiency AC to DC power adapter supplies 45W, 65w or 90w max output, works with worldwide power sources from 100~240VAC
• Includes 6 self-regulating adapter tips, each tip can automatically adjust output voltage to support most 45W power compatible laptop or Ultrabook models from ASUS, Acer, Dell, HP, Lenovo, Fujitsu and more
• Integrated USB charging port (5V/2A) enables charging of most smartphone or tablet devices
• Ultra-slim, lightweight with detachable power cord enhances portability and mobility, perfect accessory while on-the-go
• Innovative suitcase-style housing looks stylish and modern
• Heat-dissipating cut-out slots increase airflow to prevent the power adapter from overheating over long hours of operation
• Built in over-current, over-voltage, over-temperature and short-circuit protections protect your device and the charger itself from damage