FNIRSI FNB58 USB Port Tester - Black
The FNIRSI FNB58 USB Port Tester is a professional diagnostic tool designed for measuring and analyzing USB charging performance. Featuring a high-resolution 2-inch display, Bluetooth connectivity, and support for major fast-charging protocols, it provides detailed real-time monitoring of voltage, current, power, and charging behavior. The tester helps verify charger quality, evaluate cable performance, detect charging issues, and monitor charging efficiency. With support for PD 3.1, PPS, QC, AFC, SCP, and many other standards, it is suitable for technicians, electronics enthusiasts, and anyone who wants accurate insight into USB power delivery systems.
Support for modern fast-charging technologies, including PD 2.0, PD 3.0, PD 3.1, PPS, QC 2.0, QC 3.0, AFC, FCP, SCP, PE, DASH, VOOC, and SuperVOOC, ensures broad compatibility with chargers, smartphones, tablets, power banks, and other USB-powered devices. Automatic protocol detection allows users to quickly identify active charging modes and verify compatibility between chargers and connected devices.
The integrated Bluetooth functionality enables wireless monitoring through a compatible mobile application, providing convenient access to measurement data and additional analysis tools. Real-time waveform monitoring and offline recording capabilities allow users to observe charging performance over extended periods and review historical data after testing is complete. The device can record charging and discharging information for up to ten separate sessions, supporting detailed performance evaluations.
Performance highlights:
• High-resolution 2-inch LCD display with detailed measurement data
• Measures voltage, current, power, capacity, and charging performance
• Bluetooth connectivity with mobile app support
• Supports PD 3.1 with EPR AVS mode up to 28V
• Compatible with major fast-charging protocols and technologies
• Real-time voltage and current waveform monitoring
• Offline data recording and curve analysis for extended testing
• Detects charger quality and power ripple levels
• Reads E-Marker information from compatible USB-C cables
• Measures cable resistance and verifies charging capabilities
• USB-A, USB-C, and Micro USB connectivity options
• Stores multiple charging and discharging test records
• Driver-free PC connectivity for data synchronization
• Suitable for charger, cable, battery, and power source diagnostics
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