The UNI-T UT658C USB Tester is a compact and easy-to-use device for checking USB power and charging performance. It measures voltage and current accurately, therefore helping users identify charging issues quickly. Moreover, the clear digital display shows real-time readings for easy monitoring. In addition, it supports different USB devices and chargers. As a result, this USB tester is ideal for technicians, engineers, and everyday users. Features: Measures USB voltage and current Clear digital display for easy reading Compact and portable design Supports multiple USB devices Simple plug-and-play operation Specifications: Input & Output ports (Type C) √ Data/charging protocol 2.0/4.0 Voltage range 4~24VDC, resolution: 0.01V √ Current range (Type-C) 0.05~5ADC, resolution: 0.01A √ Capacity 0~99999mAh, resolution: 1mAh √ Energy 0~1000Wh √ Circuit equivalent resistance measurement 1~480Ω √ USB data cable voltage (D+, D-) 0~3.3V √ Data storage 10 sets √ Maximum recording time 99h, 59min, 59sec; resolution: 1s √ Fast charge protocol (Type-C) QC 4.0 fast charge protocol √ General Characteristics Product color White Product net weight 50.6g Uses Testing USB chargers and power banks Checking USB cable performance Monitoring phone/tablet charging parameters Diagnosing faulty USB ports or devices Quality checks for USB charging setups Package Includes: 1 x UNI T UT658C USB Tester