What should be paid attention to when buying an AC adapter?

1. Be sure to know the input voltage range of your power adapter. It is best to use AC100--240V voltage input that is universal in the world, so that your computer cannot be used abroad, or if you return to China from abroad, it will be risky if you connect AC220V. cigarette.
2. Be sure to know the output voltage and current of your power adapter!
It is best to be completely consistent with the nominal voltage and current of your power supply. As for the brand, the quality of different brands is not much different, because many brands of power supplies may come from the same power supply manufacturer, and they are posted in the form of OEM. brand production.