# FNIRSI FNB-C2 USB-C PD 3.1 Fast Charge Tester (240W)

**Type:** Product page · **SKU:** CE11101 · **Brand:** [FNIRSI](https://core-electronics.com.au/brands/fnirsi)
**Page:** https://core-electronics.com.au/fnirsi-fnb-c2-usb-c-pd-3-1-fast-charge-tester.html ([markdown](https://core-electronics.com.au/fnirsi-fnb-c2-usb-c-pd-3-1-fast-charge-tester.html.md))

See exactly what your USB-C chargers, cables and devices are negotiating, all the way up to 240W EPR, with a pocket-sized inline meter.

## Pricing

- **Price:** $58.49 (inc GST) — $53.17 AUD, exc GST

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 20 today, and up to 300 more in 8–25 days.

## Description

An inline USB-C meter that shows the voltage, current and power flowing between a charger and a device, along with the fast-charge protocol they've agreed on. It measures up to 50V and 240W, so it covers PD 3.1 EPR laptop chargers as well as phones and power banks.

When a laptop charges slowly or a phone won't fast charge, the cause could be the charger, the cable or the device. The tester can list the protocols a charger supports, read the E-Marker chip in a USB-C cable, and log the PD messages exchanged between charger and device, which is usually enough to find the culprit.

It has a USB-C plug on one end and a USB-C socket on the other, so it connects inline without adapter leads. Readings come from an external 20-bit ADC, and a separate PD controller chip handles protocol communication.

For longer tests, it records voltage and current curves for up to 9 hours and keeps 10 separate energy and capacity counters. That makes it useful for checking a power bank's real capacity or a charger's efficiency.

### Features

- 7-digit readings with ±0.2‰ voltage accuracy
- Detects and triggers PD, UFCS, QC2.0/3.0/4/5, Huawei FCP/SCP, OPPO VOOC/SVOOC and VIVO VFCP
- Reads cable E-Marker data (type, rated power, length, speed and version) from 3A, 5A, EPR and Thunderbolt 3/4 cables
- Simulates no-E-Marker (60W), 20V 5A and 50V 5A cables to show how a device responds to each
- Captures PD negotiation packets for tracking down compatibility problems
- Two capture modes: V/I/D+/D− plots at 2Sps–1kSps, and AC-coupled ripple at 20kSps–2MSps
- QC-to-PD conversion lets QC-only devices fast charge from PD chargers
- Measures current in either direction
- Curve logging interval adjustable from 1 to 120 seconds
- 1.54" colour screen that rotates to suit how the tester is oriented
- Firmware updates over USB with no drivers needed; Windows logging software available from FNIRSI
- Monitors its own temperature during high-power tests
 
### Specifications

 | Property | Specification |
|---|---|
| Model | FNB-C2 (FNIRSI-C2) |
| Connectors | USB-C male and USB-C female (24-pin), bidirectional |
| ADC | 20-bit external |
| Voltage Range | 4–50V (resolution 0.000001V, accuracy ±(0.2‰+2)) |
| Current Range | 0–6.5A (resolution 0.000001A, accuracy ±(0.5‰+2)) |
| Power Range | 0–240W (resolution 0.000001W, accuracy ±(0.5‰+2)) |
| D+/D− Voltage | 0–3.3V (resolution 0.001V, accuracy ±(1.0%+2)) |
| CC1/CC2 Voltage | 0–3.3V (resolution 0.001V, accuracy ±(1.0%+2)) |
| Capacity | 0–9999.99Ah (resolution 0.00001Ah) |
| Energy | 0–9999.99Wh (resolution 0.00001Wh) |
| Device Temperature Resolution | 1°C |
| Curve Recording | Up to 9h, 1–120s interval |
| Ripple Sampling | 20kSps–2MSps (AC-coupled) |
| Protocols | PD 3.1 (EPR), UFCS, QC2.0/3.0/4/5, Huawei FCP/SCP, OPPO VOOC/SVOOC, VIVO VFCP |
| Display | 1.54" 240×240 colour TFT, 4-way auto-rotation |
| Operating Environment | -5–40°C, ≤80% RH |

### What's Included

- 1x FNIRSI FNB-C2 USB-C tester
- 1x User guide

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/c/e/ce11101-showcase.jpg)