【Reliable USB cable tester】: The product can be used to test different types of USB cables, including TypeB 3.0, TypeB 2.0, TypeC 3.0 (TypeC 3.1/TypeC 3.2), MicroB 3.0, MicroB 2.0, MiniB 2.0, and Lightning. 【Convenient and practical】: The product features a portable design, compact size, and is easy to carry and use.It's comes with an acrylic case to protect the usb cable tester from damage. 【Multiple power supply options】: Supports two power supply modes: CR2032 button battery or external power supply (Vin) within the range of 3-12V. Vin provides reverse connection protection. 【LED indicator lights】: Test results are displayed through 24 LED indicators, with each pin corresponding to an LED light. 【Multi-functional and practical】: Supports multiple types of interfaces, allowing quick detection of data cable abnormalities and detection of internal short circuits that may interfere with normal operation.