Fnirsi FNB-C2 USB tester
Details
The Fnirsi FNB-C2 is a compact USB-C tester for chargers, power banks, and cables. Thanks to PD3.1 EPR support, the tester reads up to 240W of power and 50V of voltage. The unit also automatically detects and triggers most fast-charging protocols. A 20-bit high-precision ADC chip enables readouts with a 7-digit resolution.
Additionally, the tester reads a cable's E-Marker chip to show, among other things, its type, power, or speed. Moreover, PD monitoring captures the protocol negotiation between charger and load, which can help troubleshoot compatibility issues. The unit also features a battery test, which can estimate the real capacity of a battery. The FNB-C2 is a versatile tool, which suits education and hobbyists, as well as repair and diagnostics.
Specifications
| Monitoring power range | 0 - 240 W |
| Monitoring voltage range | 4 - 50 V |
| Monitoring current range | 0 - 6.5 A |
| Monitoring resolution | 1 µW / 1 µV / 1 µA |
| D+ / D− voltage range | 0 - 3.3 V |
| CC1 / CC2 voltage range | 0 - 3.3 V |
| Recording time | 9 h |
Pros and cons
- Supports PD3.1 EPR up to 240W
- 7-digit resolution
- No Bluetooth
Downloads
| Fnirsi FNB-C2 user manual |  (2.39 MB) | Download |
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