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Data Diode Solutions For Protecting Critical Assets

Our one-way communication diodes guarantee protection for your critical infrastructure. Choose Fend’s cybersecurity hardware today or contact us for more information.

Which Data Diode is Right for You?

How Data Diodes Protect You

Data diodes (also known as unidirectional gateways or one-way communication diodes) are cybersecurity hardware devices designed to facilitate one-way communication of data. Segment and defend your networks effortlessly to protect even the most sensitive data and assets with Fend. Learn more about how they work with our guide to data diodes.

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Why Choose Fend?

Fend’s unidirectional gateway hardware physically protects you from cyberattack. Fend diodes feature:

  • All supported protocols included with purchase. No hidden fees or licenses.

  • No need for custom external servers or software.

  • Built from the ground up as a cost-effective solution for monitoring industrial equipment.

  • Made in the USA.


Built-in Protocol Support

Fend data diodes come equipped with onboard protocol support for common industrial and IT protocols like Modbus, FTP, and TCP/IP. Setting up a diode is as easy as logging in the Fend Configuration Tool, selecting your protocols, entering some basic information. It takes minutes!

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Fend Cloud

Use the power of remote monitoring or cloud-based analytics to provide the operational awareness and intelligence your teams need to more efficiently achieve your mission and improve resilience.


Buy Now

Fend’s patented hardware is designed for the unique needs of industrial control systems.  Our products are designed and built in the USA for long life, wide temperature range, and ease of installation.  Contact us for a quote.

Enterprise Solutions

Fend's enterprise solutions are designed to bring a consistent, scalable approach to your equipment and network monitoring. As complex as your operation may be, Fend can simplify your operational technology (OT) security. Whether you have 50 manufacturing sites or 50,000 buildings, you can get the situational awareness you need across your entire portfolio while physically blocking cyberattacks.

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Integration Services

Fend partners with leaders in system integration, engineering, and other specialties to provide full-service options including assessment, design, installation, integration, analytics, and monitoring

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