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

MetaDefender Optical Diode^™

Hardware Enforced One-way Transfer for IT and OT Environments

MetaDefender Optical Diode is OPSWAT’s data diode solution, providing a reliable transfer of data over a hardware enforced one-way communications link, enabling secure data transfer between isolated networks. To support the concurrent transfer of multiple data types, MetaDefender Optical Diode ensures the security and integrity of your critical assets.

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Easy to Deploy
Data Diode

The Preconfigured Platform
Deploys Quickly and Seamlessly

Redundant Optical Connection

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

Learn how MetaDefender Optical Diode enables secure, hardware-enforced one-way data transfer between
isolated networks while preserving data integrity.

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

MetaDefender

Optical Diode 1U

Learn how Data Diodes protect your network.

Airtight protection for OT/ICS-to-IT communication
Secure, segmented, unidirectional data paths
True protocol break, non-routable connection
Redundant optical connection for unsurpassed reliability
Easy to deploy and operate data diode
Seamlessly integrates with MetaDefender Kiosk, Core, and Managed File Transfer

Download Datasheet View Documentation

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MetaDefender

Optical Diode DIN Rail

Learn how Data Diodes protect your network.

Airtight protection for OT/ICS-to-IT communication
Secure, segmented, unidirectional data paths
True protocol break, non-routable connection
Redundant optical connection for unsurpassed reliability
Easy to deploy and operate data diode
Seamlessly integrates with MetaDefender Kiosk, Core, and Managed File Transfer
Common Criteria EAL4+ certified
C1D2 Certified

Download Datasheet View Documentation

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MetaDefender

XE, SE, CE (Fend)

Learn how Data Diodes protect your network.

Full optical isolation
All-in-one design
On-diode protocol conversion (e.g. Modbus to JSON)
Native support for FTP, TCP, UDP, and more
Easy to deploy and operate data diode
Compact, rugged, fanless design for industrial applications

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Optical Diode 1U

Listed in the NATO Information Assurance Product Catalogue – Learn More.

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 (Input)	Ethernet
	Connectivity (Output)	Ethernet
	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

Download Datasheet

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

Optical Diode DIN Rail

Listed in the NATO Information Assurance Product Catalogue – Learn More.

Configurations
Configurations	Throughput	10, 50 or 100 Mbps
Electrical
Electrical	Redundant Power Supply	n/a
	Voltage	12-36VDC
	Power Consumption	19.55W
Hardware
Hardware	Dimensions	2x 2.5 x 7.32 x 6.3" (65 x 186 x 160mm)
	Weight	2x 4.85lb (2.2kg)
	Operating Temp	-40 to 158°F (-40 to 70°C)
	MTBF	>50,000 hours
	Mounting	No additional harware needed
Other Specifications
Other Specifications	Connectivity (Input)	Ethernet
	Connectivity (Output)	Ethernet
	Tested Latency¹	0.6ms TCP, 0.7ms UDP
Protocol & Certification
Protocol & Certification	Industrial	Modbus, OPC (UA, DA, A&E), MQTT, IEC104 DNP3, 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 CE Mark, BIS, FCC, IC CE, WPC, RoHS, REACH
	Certification	C1D2, Common Criteria EAL 4+2 FCC/CE/UKCA

Download Datasheet

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

Optical Diode XE

Configurations
Configurations	Throughput	5, 15 or 50 Mbps – Explore Fend XE50
Electrical
Electrical	Independent Power Supplies	2X 100-240VAC 1.0A in, 12VDC 1.5A out
	Voltage	12-48VDC
	Power Consumption	4W to 8W
Hardware (XE5, XE15, XE50)
Hardware (XE5, XE15, XE50)	Dimensions	5.1 x 5.8 x 1.6" (130 x 148 x 41 mm)
	Weight	1 lb (0.5kg)
	Operating Temp	-22 to 158°F (-30 to 70°C)
	MTBF	>50,000 hours
	Mounting	Optional DIN-rail or wall-mount
Other Specifications
Other Specifications	Connectivity (Input)	Ethernet, Serial RS-485
	Connectivity (Output)	Ethernet
	Tested Latency¹	Less than 1 ms TCP/UDP
Protocol & Certification
Protocol & Certification	Industrial	Modbus TCP (full), Modbus RTU (in), BACnet IP (in), BACnet MSTP (in), LON-IP (in)
	IT	UCP, TCP, TLS, HTTP/S2
	IT Monitoring	Send log files or SYSLOG over UDP or TCP
	File Transfer	FTP, FTPS, SFTP
	Environmental Compliance	CE, Intertek, RoHS
	OPSWAT Product Compatibility	OPSWAT Screen View, OPSWAT Managed File Transfer (MFT)², OPSWAT Kiosk²
	Certification	Tested by the US DoD ESTCP, Army, Navy

Download Datasheet

1. Actual latency results may vary according to setup used, traffic characteristics, and network topology.
2. Available only on XE50.

Optical Diode SE

Configurations
Configurations	Throughput	5 or 15 Mbps
Electrical
Electrical	Independent Power Supplies	2X 100-240VAC 1.0A in, 12VDC 1.5A out
	Voltage	12-48VDC
	Power Consumption	4W
Hardware (SE 5, SE 15)
Hardware (SE 5, SE 15)	Dimensions	5.1 x 5.8 x 1.6" (130 x 148 x 41 mm)
	Weight	1 lb (0.5kg)
	Operating Temp	-22 to 158°F (-30 to 70°C)
	MTBF	>50,000 hours
	Mounting	Optional DIN-rail or wall-mount
Other Specifications
Other Specifications	Connectivity (Input)	Ethernet, Serial RS-485
	Connectivity (Output)	Ethernet, Serial RS-485
	Tested Latency¹	Less than 1 ms TCP/UDP
Protocol & Certification
Protocol & Certification	Industrial	Modbus IP, Modbus RTU, BACnet, LON-IP (Conversion to JSON/MQTT on Output)
	IT	UDP, TCP
	IT Monitoring	Send log files or SYSLOG over UDP
	File System	FTP, FTPS, SFTP
	Environmental Compliance	CE, Intertek, RoHS
	Certification	Tested by the US DoD ESTCP, Army, Navy

Download Datasheet

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

Optical Diode CE

Configurations
Configurations	Throughput	5 or 15 Mbps
Electrical
Electrical	Independent Power Supplies	2X 100-240VAC 1.0A in, 12VDC 1.5A out
	Voltage	12-48VDC
	Power Consumption	8W
Hardware (CE 5, CE 15)
Hardware (CE 5, CE 15)	Dimensions	5.1 x 5.8 x 1.6" (130 x 148 x 41 mm)
	Weight	1 lb (0.5kg)
	Operating Temp	-22 to 158°F (-30 to 70°C)
	MTBF	>50,000 hours
	Mounting	Optional DIN-rail or wall-mount
Other Specifications
Other Specifications	Connectivity (Input)	Ethernet, Serial RS-485
	Connectivity (Output)	Ethernet, cellular
	Tested Latency¹	Less than 1 ms TCP/UDP
Protocol & Certification
Protocol & Certification	Industrial	Modbus IP, BACnet, LON-IP (Conversion to JSON/MQTT on Output)
	IT	UDP, TCP
	IT Monitoring	Send log files or SYSLOG over UDP
	File System	FTP, FTPS, SFTP
	Environmental Compliance	CE, Intertek, RoHS
	Certification	Tested by the US DoD ESTCP, Army, Navy

Download Datasheet

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 Optical Diode
High Availability with MetaDefender NetWall Optical Diodes
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

Playlist

2 videos

How are Data Diodes Used in the Power Generation Industry?
How the Oil & Gas Industry Uses Data Diodes for #Cybersecurity

Playlist

1 video

OPSWAT FEND Data Diode Stress Test

Optical Diode Deployment

MetaDefender Optical Diode provides access to real-time OT data and enables secure IT/OT data and file transfers without the risk of introducing security threats to critical OT production networks and assets.

Explore technical deep-dives in Data Diodes for Air-Gap Security and How They Block AI-Enabled Malware.

From Fast to Gigafast, Solutions for Every Industrial Enterprise

MetaDefender Optical Diode is a preconfigured data diode:

2 19" 1U rack mounted or din rail servers
Includes an optical data cable and USB security dongles. It is field upgradable by software licensing.

Schedule a Demo

Scalable Industrial Cybersecurity

Data diodes that protect 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.

Transparent to Users

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

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. The 10Mbps din rail model is field upgradeable to 50Mbps.

Full Support for Industrial Protocols

Includes TCP, UDP, HTTPS, FTP, SFTP, FTPS, SMB, Windows file Share, CIFS, SMTP, Video, Aveva Pi (1U model only), Modbus, OPC DA/AE/UA, MQTT, DNP3, IEC-104, ICCP, and Screen View.

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

Certifications

MetaDefender Optical Diode is certified in Common Criteria EAL4+ and C1D2*.
*MetaDefender Optical Diode din rail model only. C1D2 certification as of November 2024.

MetaDefender Optical Diode 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 Optical Diode	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

Read the Blog