Over voltage, over temperature protection, it is different from the cheap one. This high quality replacement adapter provides your laptop with safe and reliable power.
Input: AC 100~240V
Output: DC 19V~4.74A
Power : 90 Watts
Connector Size: 4.8x1.7
Package include: 1 x Laptop Charger. The 3 Prong Power Cord is not included.