







⚡ Power up your tech IQ with FNIRSI’s ultimate USB tester — don’t get left behind!
The FNIRSI FNB58 USB Tester is a cutting-edge, multi-interface device designed for professionals to precisely measure USB voltage, current, power, and fast charging protocols. Featuring a vibrant 2.0-inch TFT LCD, 16-bit ADC accuracy, and support for major fast charge standards, it offers advanced data logging, cable diagnostics, and ripple analysis in a compact, high-safety package.











| Manufacturer | FNIRSI |
| Part number | FNIRSI-001 |
| Item Weight | 45.4 g |
| Package Dimensions | 11.5 x 8.5 x 2.4 cm; 45.36 g |
| Item model number | FNIRSI-001 |
| Color | multi-color |
| Style | Modern |
| Power source type | Corded Electric |
| Item Package Quantity | 1 |
| Measurement Accuracy | ±0.5‰ |
| Specification met | Ul, Iec |
| Included components | USB Tester |
| Batteries Included? | No |
| Batteries Required? | No |
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