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Cynthion is an all-in-one
SKU Part Number:
CYNTHION-USB
Cynthion is a versatile tool designed for USB device development, testing, and analysis. It features an FPGA-based architecture, making it fully...
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£189.95
£158.29
Availability: In stock

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Call 0345 2300 599Cynthion is a versatile tool designed for USB device development, testing, and analysis. It features an FPGA-based architecture, making it fully customizable for various applications.
Out of the box, Cynthion serves as a powerful USB protocol analyzer that can capture and analyze traffic across different USB speeds. It integrates seamlessly with open-source software like Packetry, LUNA, and Facedancer, enabling users to research, develop, and manipulate real USB devices with ease, even without extensive hardware design experience.
Documentation + Technical Information
Documentation for Cynthion is on Read the Docs. Hardware design files for Cynthion are available in the cynthion-hardware repository. For a schematic PDF, assembly diagrams, bill of materials, component position file, and Gerber files, please download a repository release. Read the latest news about Cynthion in our Cynthion-tagged blog posts.
Getting Help
For assistance with Cynthion use or development, please look at the issues on the Cynthion GitHub project. This is the preferred place to ask questions so that others may locate the answer to your question in the future. For hardware issues use the cynthion-hardware repository.
We invite you to join our community discussions on Discord. Note that while technical support requests are welcome here, we do not have support staff on duty at all times and your questions are not guaranteed to be answered. Be sure to also submit an issue on GitHub if you’ve found a bug or if you want to ensure that your request will be tracked and not overlooked.
Shipping:
We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.
Returns:
If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:
Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request. Large items cannot be returned if they have been assembled, unless faulty.
Warranty Terms and Conditions
Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.
For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.
International Warranty information
Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]