DC plug dimension: 4.5mm*3.0mm

Input (input): 100-240V (world wide)

Output (output): voltage: 19.5V current: 2.31A

Power (power): 45W

Name laptop adapter: 19.5V2.31A 45W
Color black, or accordingly
Usage for laptop
Output voltage: 19.5V
Output current: 2.31A
Output frequency: 50-60HZ
Output power: 1-45W
Input voltage: AC100-240V
connector size(mm):4.5mm*3.0mm