FNIRSI FNB58 USB Port Tester Black

FNIRSI FNB58 Black USB Port Tester

The FNIRSI FNB58 is an advanced USB port and fast charging tester that allows you to easily check power parameters, protocol compatibility, and accessory quality. It offers a clear display, very precise measurements, and extensive support for fast charging standards from popular brands. It allows for real-time and offline analysis of voltage, current, power, and charging waveforms. It checks the quality of chargers and cables and their actual performance, detecting weak or unsafe power sources. Bluetooth connectivity and app support provide convenient data monitoring and additional safety features.

Enter the era of super-fast charging

The FNIRSI FNB58 is an advanced measurement tool designed for technology enthusiasts, service technicians, and anyone who wants full control over the charging process. Support for PD3.1 standards with EPR AVS mode up to 28V and detection of PD cables up to 240W make the device a perfect fit for advanced chargers and accessories. This device allows you to understand and fully utilize the potential of fast charging.

Precision at a glance

The tester's front panel features a 2-inch high-resolution LCD display, displaying complete and extremely accurate measurement data. Resolution down to 0.0001 allows for the detection of even subtle changes in voltage, current, and power in real time, making any anomalies during charging immediately noticeable. A simple, clear interface and independent function menu make operation intuitive and convenient.

Solid construction and fully functional connectors

The FNIRSI FNB58 features a USB-A output and input with a high current carrying capacity of 5P, as well as Type-C and Micro inputs and a Type-C output. The Type-C port features 24-pin, high-quality copper contacts for stable and reliable measurements. The housing also includes function buttons, a reverse button, a PC interface, and a dedicated PD switch, making the device a complete diagnostic center for USB ports and cables.

Full compatibility with the most popular standards

The tester supports a wide range of fast charging protocols, including PD 2.0 and 3.0, PPS, QC 2.0 and 3.0, FCP, SCP, AFC, PE, DASHVOOC, and SuperVOOC. This means it seamlessly works with super fast charging technologies from Huawei, Xiaomi, and OPPO, as well as Apple Power Delivery and Samsung's fast charging. Automatic protocol detection allows you to instantly check which mode the charger and cable are operating in.

Detect problems before they damage your equipment

Advanced power supply ripple measurement allows you to quickly assess the quality of your charger. The device clearly indicates the ripple level, allowing you to assess whether the power supply is excellent, normal, experiencing high ripple, or even poor quality. This helps you avoid using inferior chargers that shorten battery life and compromise device safety.

Real-time and offline curve analysis

The FNIRSI FNB58 displays live voltage and current waveforms, allowing for immediate detection of improper charging. It also offers offline curve recording for up to 9 hours, allowing for analysis of the entire process after charging. Monitoring the D+ and D- curves provides full insight into charging protocol changes in real time, making the tester an expert tool.

Cable and Actual Performance Diagnostics

The device can read data from the CC line in PD cables with an E-Marker chip, detect DASH cable parameters, and measure their internal resistance using a two-stage method under constant current load. This makes it easy to check whether the cable actually meets the declared parameters and is suitable for high-power fast charging.

Intelligent Energy Management

The tester supports recording up to 10 sets of charge and discharge energy data, and the built-in algorithm allows for quick calculation of battery capacity based on the recorded values. Computer operation without installing drivers ensures convenient data synchronization.

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