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⚡ Power up your USB testing game with FNIRSI FNB58 — where precision meets speed!
The FNIRSI FNB58 is a cutting-edge USB tester featuring a 2.0-inch TFT display and multi-port support (USB-A, Micro-USB, Type-C). It offers precise voltage, current, power, and resistance measurements using a 16-bit ADC and PD protocol chip. Supporting a wide range of fast charge protocols including QC, PD, VOOC, and Super VOOC, it automatically detects and triggers these for comprehensive diagnostics. With real-time graphing, ripple waveform analysis, and smart app connectivity, it’s the ultimate tool for professionals needing detailed USB power and charging insights.
















| ASIN | B0BJ253W31 |
| Best Sellers Rank | #23,866 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #19 in Voltage Testers |
| Brand | FNIRSI |
| Brand Name | FNIRSI |
| Color | multi-color |
| Compatible Devices | USB interfaces, mobile phone chargers, U disks, mobile phones, mobile power supplies, USB-A, Micro-USB, Type-C devices from various brands |
| Customer Reviews | 4.4 out of 5 stars 535 Reviews |
| Included Components | USB Tester |
| Item Highlight | PD2.0/3.0 & QC2.0/3.0, Voltage/Current/Power Monitoring, Real-Time Graphs, Capacity, Ripple, PD Trigger, App/PC Software |
| Item Weight | 1.6 ounces |
| Manufacturer | FNIRSI |
| Measurement Type | Voltage, Current, Fast Charge Detection, Etc |
| Min. Operating Voltage | 4 |
| Minimum Operating Voltage | 4 |
| Model | FNIRSI-001 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | FNIRSI-001 |
| Power Source | Battery Powered |
| Specification Met | Ul, Iec |
| Style | FNB58 |
| Style Name | FNB58 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 40 °C |
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