Add an additional adapter and you will always have one available at the office or at home. Connect one end of the adapter to your HP Mobile Workstation or HP Docking Station and plug the other end into a standard outlet. The package includes a smart cable (4.5 mm to 7.4 mm), allowing the adapter to be used for both new and existing platforms. HP Smart Power Supply 150 W, rated power: 150 W, compatible manufacturers: HP.