# Cynthion

**Type:** Product page · **SKU:** GSG-CYNTHION · **Brand:** [Great Scott Gadgets](https://core-electronics.com.au/brands/great-scott-gadgets-australia)
**Page:** https://core-electronics.com.au/great-scott-gadgets-cynthion-usb-analyser-builder-debugger.html ([markdown](https://core-electronics.com.au/great-scott-gadgets-cynthion-usb-analyser-builder-debugger.html.md))

FPGA-based USB multitool for capturing and analysing Low, Full and High-Speed USB traffic. It supports device emulation and USB research using open tools.

## Pricing

- **Price:** $354.95 (inc GST) — $322.68 AUD, exc GST

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## Description

Meet Cynthion, the all-in-one USB multi-tool from Great Scott Gadgets for analysing, developing, and experimenting with USB. It captures and inspects live USB traffic, then pivots to device creation and research with the same compact, FPGA-based hardware.

Use it on the bench to debug enumeration issues, validate peripherals, or teach core USB concepts. With open-source tooling like Packetry, LUNA gateware, and Facedancer libraries, you can move from passive protocol analysis to active device emulation and security exploration with confidence.

[USB cables](https://core-electronics.com.au/cables/usb.html) purchased seperately

### Technical Specifications

 | Architecture | FPGA-based, reconfigurable digital hardware |
|---|---|
| Supported USB speeds | Low-Speed, Full-Speed, High-Speed (USB 2.0) |
| Protocol analysis software | Packetry (open-source) |
| Development libraries | LUNA gateware; Facedancer libraries |
| Typical use-cases | Capture and analyse host-device traffic; reverse engineering; device emulation and testing; education |

### Additional Resources

- [Read the Docs](https://cynthion.readthedocs.io/en/latest/)
- [Hardware Repo](https://github.com/greatscottgadgets/cynthion-hardware)
 
### What’s Included

- 1 x Cynthion unit

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/g/s/gsg-cynthion-showcase.jpg)