A USB port tester is a device used to test the functionality and performance of USB ports on a laptop or other electronic device. It can be used to verify that the port is providing the correct voltage and current, and to identify any issues that may be preventing the port from working properly. USB port testers are available in a variety of shapes and sizes, and some models can also be used to test other types of ports, such as HDMI and Ethernet ports.
USB port testers are an important tool for troubleshooting USB port issues. They can help to identify problems with the port itself, the cable, or the device that is being connected to the port. By using a USB port tester, you can quickly and easily determine whether a USB port is working properly, and you can take steps to resolve any issues that you find.
