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【Multi-port USB tester】FNIRSI FNB58 has a 2.0-inch TFT LCD display, integrated USB-A, Micro-USB, Type-C interface. It is a USB voltage and current detection meter with APP software, a mobile communication terminal with gravity sensor and a fast charging trigger 【Multifunction USB Digital Tester】FNB58 uses external 16-bit ADC, PD protocol physical chip. FNB58 USB tester can monitor the voltage, current, power, resistance, capacity, D+/D- voltage etc, it can be used to test the fast charging protocol of chargers 【Fast Charge Protocol Trigger Detection】FNB58 supports QC2.0/QC3.0, FCP/SCP, AFC, PD2.0/3.0, VOOC/WARP, Super VOOC 1.0/2.0 trigger. The above protocols all support automatic monitoring. MTK-PE automatic detection. Support QC2.O->PD2.0 protocol conversion 【Parameter Recording】 Six-digit display of voltage, current and power. 10 sets of switchable capacity, power etc. Support low-speed waveform drawing, 2 sps-100 sps sampling rate. Support ripple drawing, up to 4 M sps sampling rate 【USB tester detection function】The resistance measurement of the wire by the differential pressure method. E-Marker Cable chip reading. DASH Cable data reading. Record of startup time. Onboard temperature measurement. PD monitor. Analog DASH cable 【Note】To support environmental protection and reduce paper use, the FNB58 does not include a printed manual. You can access the manual, firmware updates, and app information via the QR code provided in the packaging Ensure the PD function switch is on, select the correct input port, and use a compatible protocol; if incompatible, the device defaults to 5 V output, which may limit power measurement