Many types of devices, including external hard drives, printers, and other peripherals, are powered using the USB ports on your computer. The USB port also comes in handy for charging accessories such as smartwatches, TWS earbuds, and other things. So it is sometimes essential to know exactly how much power the USB ports on your Windows 10 laptop or desktop can supply. To help you with that, here’s a detailed guide on how you can check the power output of USB ports on your Windows 10 computer.

A USB port with a low-power output will not only take a long time to charge phones or earbuds but might also fail to deliver enough power for the proper functioning of other peripherals. Thankfully, it is easy to measure the power output of a USB port on your Windows 10 PC. Here’s how you do it:

  • Check USB Power Output Using Windows Device Manager
  • Check USB Power Output Using Third-party Software
  • Check USB Power Output Using Specialized Hardware

Check USB Power Output Using Windows Device Manager

Windows 10 offers a built-in method to check the current power state of all USB ports on the computer. To check that, you need to go over to Windows Device Manager.

  • In the Device Manager window, scroll down and double-click on ‘Universal Serial Bus controllers‘.

There are multiple third-party applications that let you check the USB properties in Windows 10. However, the best one for the job is NirSoft’s USBDeview (Free). It is a portable utility that lists all USB devices currently connected to your computer, as well as all USB devices that you previously used.

  • Download USBDeview from the link above and fire it up. Once you do, you’ll see a list of all the USB ports on your computer. The software will also show a complete list of all the USB devices you have ever used to your Windows 10 PC. The currently active ports will be highlighted in green.

Finally, you can also use dedicated hardware to check the power output of the USB ports on your computer. You can rely on USB voltmeters to measure the input voltage, current, power, capacity, and energy of the port. These typically cost between $5 and $25 (Rs. 350 – Rs. 1000) and are compatible with phones, power banks, etc.

Measure USB Power Output on Your Windows 10 PC

Knowing how to measure the power output of USB ports on your Windows 10 PC is helpful both from a usability and safety point of view. Now that you know how to do it, you should learn more about the USB 3.2 standard and how it differs from USB 3.1. Also, check out all details about the USB4 protocol, which supports DisplayPort 2.0, 8K HDR, and even 16K (15360×8460) 60 Hz monitors.