⚡ Power up your tech IQ with FNIRSI’s ultimate USB tester!
The FNIRSI USB Tester FNB58 is a professional-grade multimeter designed for precise USB voltage, current, and power measurement. Featuring a 2.0-inch TFT LCD, multi-port compatibility (USB-A, Micro-USB, Type-C), and advanced 16-bit ADC technology, it supports fast charge protocols including PD3.0 and QC3.0. With app integration, waveform and ripple analysis, and comprehensive protocol detection, it’s the essential tool for tech-savvy professionals ensuring optimal device charging and cable performance.
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