All common adapters are included. Depending on the adapter, the output current to the notebook is automatically obtained. Thanks to the illuminated LCD display of the output current (Volt) indicates there is no risk related adapter (plug) to be confused for notebooks. For example, Toshiba often used almost identical plugs but even with 15V (Satellite Pro S300) and once with 19V (Satellite X30) Also handy is the USB box. for example to charge mobile devices without having to switch on the notebook.