The HP 854055-004 is a 65 W Smart AC adapter for supplying power to a laptop. Its exact part number identifies this adapter for checking whether its connection and electrical ratings match your computer.
It accepts 100–240 V AC and supplies 19.5 V DC, with a maximum current of 3.33 A and maximum capacity of 65 W. These ratings describe the power it can provide; check them against the laptop’s requirements.
The black adapter has a 4.5 × 2.8 mm output plug with a centre pin and a C6 AC socket on the mains side. The plug dimensions and centre pin help identify the required connection.
Package contents: a power cable is not included.