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 Dell™ 90-Watt AC adapter with 1 meter 3 wire Power Cord enables you to operate your Laptops or charge the battery from electrical power outlets. This product has been tested and validated on Dell systems. It is supported by Dell Technical Support when used with a Dell system.