Stop lugging your AC adapter back and forth between home and office. Get a second AC adapter for your notebook and keep one in the office and one for home or travel. The 165-Watt AC adapter from Dell is specially designed to meet the power needs of your Dell laptop. Packed with 165 Watts of power, this adapter enables you to simultaneously operate your system and charge its battery from electrical power outlets. The Dell 165-Watt AC adapter incorporates gallium nitride (GaN) technology, developed in collaboration with GaN Systems.