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  • OPSWAT Inc. - MetaDefender Unidirectional Security Gateway
  • Publish date: 03/20/2026
  • Product release date: 02/28/2022
  • Product Version: 5.13.0
  • Product Webpage
MetaDefender Unidirectional Security Gateway

MetaDefender Unidirectional Security Gateway

MetaDefender Unidirectional Security Gateway (USG) assures uncompromising security for OT/IT communications, providing access to real-time OT data and enabling secure IT-OT data and file transfers without the risk of introducing security threats to critical OT production networks and assets. MetaDefender USG enforces one way data flows while guaranteeing payload delivery and preventing data loss and retransmission.

MetaDefender Unidirectional Security Gateway supports OPC UA and OPC Classic (DA, A&E) unidirectional data transfer.  

Product details

Category: Gateway

Supported Profiles and Facets

Application Profiles:

  • UACore 1.04
    • Standard 2017 UA Server Profile

Security Policies:

  • UACore 1.04
    • SecurityPolicy - Aes256-Sha256-RsaPss
    • SecurityPolicy - PubSub-Aes256-CTR
    • SecurityPolicy [B] – Basic256Sha256
    • SecurityPolicy – Basic256

User Tokens:

  • UACore 1.04
    • User Token – User Name Password Server Facet
    • User Token – X509 Certificate Server Facet

Capacities

Max. SecureChannels: 20
Max. Sessions: 20
Max. Subscriptions: 20
Max. Monitored Items: 1000000
Max. Monitored Items Per Subscription: 50000
Monitored Item Queue: 100000
Publish Request Queue: 50000
Fastest Sampling: 1
Fastest Publishing: 1

Supported Profiles and Facets

Application Profiles:

  • UACore 1.04
    • Standard UA Client 2017 Profile

Security Policies:

  • UACore 1.04
    • SecurityPolicy - Aes256-Sha256-RsaPss
    • SecurityPolicy - PubSub-Aes256-CTR
    • SecurityPolicy [B] – Basic256Sha256
    • SecurityPolicy – Basic256

User Tokens:

  • UACore 1.04
    • User Token – User Name Password Client Facet
    • User Token – X509 Certificate Client Facet

Capacities

Max. SecureChannels: 20
Max. Sessions: 20
Max. Subscriptions: 20
Max. Monitored Items: 1000000
Max. Monitored Items Per Subscription: 50000
Monitored Item Queue: 100000
Publish Request Queue: 1000000
Fastest Sampling: 1
Fastest Publishing: 1
  • Data Access 2.05a
  • Data Access 3.0
  • Alarms and Events
  • Data Access 2.05a
  • Data Access 3.0
  • Alarms and Events