Fend's Data Diodes are Now Part of the MetaDefender Platform

MetaDefender
Unidirectional Security Gateway^™

Unidirectional Security Gateway for IT and OT

MetaDefender Unidirectional Security Gateway provides access to real-time OT data and enables secure data transfer to the OT environment without compromising the security and integrity of your critical production systems.

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Endpoint Cert. Members

Easy to Deploy

The Preconfigured Platform
Deploys Quickly and Seamlessly

Guaranteed Payload Delivery

Anti-Overrun Control

High Availability

Maximize Uptime
& Minimize Data Loss

No Return Path

One-way Data Flows

Simple to Operate

Scalable

Hardware-Enforced
Unidirectional Data Flow

Product Overview

See how MetaDefender Unidirectional Security Gateway enables secure one-way data transfer and real-time 
OT data access without compromising the integrity of critical production systems.

To learn about our commitment, see Why We Entered the Data Diode & Gateway Business.

Space-Efficient and Easily Rack-Mounted

Airtight protection for OT/ICS-to-IT communication
Secure, segmented, unidirectional data paths
True protocol break, non-routable connection
Assured delivery with no data loss
Easy deployment and operation
Prevent malicious C&C communications from the OT network
Protect networks, devices, historians, SCADA, DCS, HMIs, and PLCs
Seamless integration with MetaDefender Kiosk and Managed File Transfer
Secure the transfer of software updates and other files to the protected domain
Common Criteria EAL4+ Certified

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Unidirectional Security Gateway

Configurations
Configurations	Throughput	100 Mbps, 1 Gbps, or 10 Gbps
Electrical
Electrical	Redundant Power Supply	250W
	Voltage	100-240VAC, auto ranging
	Power Consumption	150W typical
Hardware
Hardware	Dimensions	2x 19 x 1.75 x 15.75" (483 x 44 x 400mm)
	Weight	2x 27lb (12.2kg)
	Operating Temp	32 – 131°F (0 – 55°C)
	MTBF	>50,000 hours
	Mounting	1U rack kit included
Other Specifications
Other Specifications	Connectivity	2x USB for connecting provided crypto keys
Other Specifications	Tested Latency¹	0.6ms TCP, 0.7ms UDP
Protocol & Certification
Protocol & Certification	Industrial	Modbus, OPC (UA, DA, A&E), MQTT, IEC104 DNP3, AVEVA, PI historian, ICCP
	IT	UDP, TCP, HTTP, HTTPS, SMTP Video/audio stream transfer Ethernet packet transfer
	IT Monitoring	Log Transfer, SNMP Traps, SPAN, SYSLOG, SIEM integration via SYSLOG, Screen view
	File System	FTP, FTPS, SFTP, Folder and file transfer/copy, Windows File Share, SMB, CIFS, Antivirus updates, Patch (WSUS) updates
	Environmental Compliance	FCC Class A Mark, BIS, FCC, IC CE, WPC, RoHS, REACH
	Certification	Common Criteria EAL 4+ FCC/CE/UKCA

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1. Actual latency results may vary according to setup used, traffic characteristics, and network topology.

Watch the Diodes in Action

Discover the OPSWAT MetaDefender NetWall family through a series of technical videos. These clips delve into the products' mechanics, highlight their durability under extreme testing, and feature interviews with industry experts, providing valuable insights.

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Playlist

6 videos

OPSWAT MetaDefender Unidirectional Security Gateway
What is a Data Diode?
Why are Data Diodes Used?
How are Data Diodes Used in the Power Generation Industry?
How the Oil & Gas Industry Uses Data Diodes for #Cybersecurity
Into the Breach: How Hackers Break Firewalls & The Truth About Data Diodes | Trailer 1

Playlist

6 videos

How are Data Diodes Used in the Power Generation Industry?
How the Oil & Gas Industry Uses Data Diodes for #Cybersecurity
Into the Breach: How Hackers Break Firewalls & The Truth About Data Diodes | Trailer 1
What Are the Differences Between Data Diodes and Firewalls?
How Do Data Diodes Help Against AI-Generated Threats?
How Can Data Diodes Work With Firewalls

Unidirectional Security Gateway Deployment

MetaDefender Unidirectional Security Gateway enforces one way data flows while guaranteeing payload delivery and preventing data loss, avoiding the need for data retransmission.

Explore a technical deep-dive in Can AI-Enabled Malware Bypass Data Diodes?

“NetWall has helped us enhance work efficiency, simplify regulatory compliance, and reduce operational risks—ultimately helping to protect our operations and reputation.”

Company Representative

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From Fast to Gigafast, Solutions for Every Industrial Enterprise

MetaDefender Unidirectional Security Gateway is a preconfigured appliance:

2 19" 1U rack mounted servers
Includes PCIe cards, data link cable, USB security dongles, and management console

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Scalable Industrial Cybersecurity

Protects against Industrial attack techniques outlined by MITRE ATT&CK for ICS.

Learn how OPSWAT’s diode technology protects Pharma & Biotech production from cyber threats.

Easy to Deploy

Preconfigured platform deploys quickly and seamlessly.

Highly Scalable

We offer a 100Mbps base platform that can be field upgraded to 1Gbps. Additionally, we offer an option for 10Gbps delivered on enterprise servers.

Simple to Operate

Ready for use in minutes after one-time initial setup. No firewall audit or configuration needed.

Transparent to Users

Fast and high-fidelity data replication means there is no need to alter work procedures of corporate users.

Enables Regulatory Compliance

Supports compliance with Industrial Cybersecurity standards: NERC CIP – NIST CSF, ICS, 800-82, 800-53 – IEC 62443 – NRC 5.71 – CFATS ISO 27001, 27032, 27103 – ANSSI – IIC SF and more

Full Support for Industrial Protocols

Includes TCP, UDP, HTTPS, FTP, SFTP, FTPS, SMB, Windows file Share, CIFS, SMTP, Video, Aveva Pi, Modbus, OPC DA/AE/UA, MQTT, DNP3, IEC-104, ICCP, and Screen View.

MetaDefender NetWall vs. Firewall, Router Rules & VLANS

True unidirectional behavior, with no possibility of routable connections to protected zone.

For a more detailed comparison, explore Data Diodes vs Firewalls.

Feature	MetaDefender NetWall	Networking Solutions
Routing configuration
Protocol break, completely removed from TCP/IP connection
Meets functional requirements of data diodes
Guaranteed delivery with non-repudiable data movement
No complex rule-building
Guaranteed prevention of malware propagation
No ARP, BGP, TCP/IP handshake

MetaDefender Optical
Diode Selector

Quickly determine the best-fit diode for secure and compliant unidirectional data flows across critical OT/ICS environments—powered by OPSWAT’s trusted optical and hardware-enforced diode technology.

Get Your Recommendation

“OPSWAT's solutions not only protect the critical assets of businesses but also provide the necessary tools and information to improve cybersecurity strategies.”

Nguyen Quoc Phong

Cyber Security Solution Specialist

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