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This USB 3.0 digital tester is built with an intuitive IPS color display, delivering real-time and clear readings of voltage, current, power, capacity and transmission status. Supporting up to 30V, 5.1A and 150W high power, it perfectly adapts to fast charging protocols and high-power USB devices. It can accurately test charger output stability, cable transmission quality and power bank actual capacity, helping you identify faulty accessories effectively. Plug and play without complicated operation, lightweight and easy to carry. Ideal for daily detection, electronic maintenance and charging performance inspection.