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[Tips & Tricks] How to Check the Power Output of a USB Port

2020-10-09 13:07:06
931 19

Hi Mi Fans,
Given so many devices now power themselves using a USB connection, it's important to know how much power the USB port on your laptop can supply. If a device tries to draw more power than the port can supply, you risk killing the port---or even starting an electrical fire.

Not all USB ports are created equal. Your machine might have a mix of USB 2.0 and USB 3.0 connections, each of which might have different outputs. Knowing a USB plug's power output also helps to determine if there are any problems with your ports. For example, if a port is not charging gadgets as quickly as normal, you might discover its power supply is not as high as it should be.

How To Check The Power Output Of A USB Port

To check a laptop's USB port voltage on Windows, download the free USBDeview. It's a portable app, so no installation necessary.

Once you fire up the app for the first time, you will see a complete list of all the USB devices that you have ever used, as well as a list of your USB ports. The ports which are currently active on your machine are highlighted using a green checkbox. To see the details of a USB port, double-click on its name. You will see all the information about the port, including when it was last used, whether it is safe to unplug any currently-connected device, and a whole lot more. To check the power output, locate the Power field. It will show you how many milliamperes the port can supply.



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2020-10-09 13:07:06
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Intern Moderator

DaMgaSea | from app


Thanks for sharing
2020-10-09 14:03:59

Pro Bunny

1765452898 | from app


2020-10-09 14:16:39

Resource Team

MGJ_1997 | from Redmi 3S


Thanks For Sharing
2020-10-09 14:17:42
2020-10-09 15:01:13

Wizard Bunny

Mi-FE | from app


Thanks for information, useful !👍
2020-10-09 15:52:59
Thanks for sharing
2020-10-09 16:30:39

Mi Rédacteur

arawak8 | from app


Thanks for sharing
2020-10-09 17:17:36
Thanks for sharing this information
2020-10-09 18:04:01

Master Bunny

maloy999 | from Redmi Note 7


2020-10-09 22:14:47

Master Bunny

kraner | from app


2020-10-10 00:15:22
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