Features: Professional USB tester for Type C fast charging cable cables accurately detect shorts, open circuits, and electrical faults while supporting USB power delivery protocols and 5A current monitoring to ensure safe, high speeded charging performances. Pocket design with real time voltages/current LED display and integrated overload protective, optimized for quick diagnosis of USB C cable integrity and fast charging compatibilities. Ideal for phone repair technicians, electronics engineers, and DIYer enthusiasts seek reliable tools to verifies cable quality or troubleshoot charging issue. Perfect for workshops, home diagnostics, or on site repairs to test charging cables, identify faulty connectors, and validate power delivery compatible accessories. Outperforms traditional testers with focused fast charging protocol analysis, enhances safety circuits, and error detection for modern USB C devices. Specifications: Size:Approx.45mm/1.77inch Color:Blue Package Includes: 1pcs USB Detection Board 1pcs USB Cable note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.