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This USB 3.0 multifunctional tester is equipped with a premium IPS color screen for intuitive and clear data viewing. It precisely measures voltage, current, power and capacity to check charger stability, cable load capacity and charging safety. With broad voltage and current coverage, it adapts to various USB adapters, power banks and digital devices. Durable, mini and plug-and-play, it is an essential tool for daily electronic maintenance, charging testing and technical verification.