The Uni-T UT658 USB tester is a practical measuring instrument in the shape of a USB flash drive for checking standard USB charging. It helps verify the functionality of mains and car chargers, USB cables, and powered devices. The backlit LCD clearly displays the measured values in real time.
The tester connects via a USB-A connector and features a USB-A output socket compliant with the USB 2.0 standard. Capacity measurement in mAh makes it easier to check the actual energy delivered and compare the performance of different cables or chargers. Up to 10 measurements can be stored in the internal memory.
Warning: The device supports voltages ranging from 3 to 9 V. It is not intended for testing fast-charging modes with voltages of 12 V or higher, such as some Quick Charge or Power Delivery modes.
