HP 40W AC Adapter are detailed below:
Core Electrical Specifications
Power Capacity: 40W
Input Voltage/Current: 100–240V ~ 1.1A
Input Frequency: 50–60Hz
Output Voltage/Current: 19.5V ⎓ 2.05A
Connector Polarity: Center-positive diagram (⎓ \(\odot \) ⊕)