FNIRSI FNB58 USB-C Fast Charge Tester 28V 7A 140W Standard D This unit communicates seamlessly via

This unit communicates seamlessly via I2C protocols and includes two Port A interfaces

0 (LE) Flash Memory 16MB PSRAM 8MB Ethernet Module W5500 Ethernet Module Ethernet Protocols Supported TCP

Measurement and control - 14-bit ADC

shaft diameter

54-8P bus interface is compatible with the M5Stack Hat expansion series

FNIRSI FNB58 USB-C Fast Charge Tester 28V 7A 140W Standard D This unit communicates seamlessly viaFNIRSI FNB58 USB C Fast Charge Tester 28V 7A 140W The FNIRSI FNB58 is a compact USB power tester for checking voltage, current, power, capacity, energy, charging protocol behavior, and cable performance across modern USB A, Micro USB, and USB C charging setups. It supports up to 28V, 7A, and 140W monitoring, making it useful for fast charge adapters, USB C cables, power banks, phones, tablets, and small electronics power paths. The tester includes a