The Original Dell ADP-90FB Rev. B AC Adapter Power Supply PA-9 - R0423 20V is a high-quality power adapter designed specifically for Dell laptops. It includes a power cable and has a voltage output of 20V with 4.5A of output current. This adapter is compatible with various Dell models such as the Inspiron and Latitude series, as well as some HP models. With a sleek black color and a reliable brand like Dell, this power supply is a convenient and essential accessory for maintaining the functionality of your laptop while on the go.