Features, pricing, ratings, and pros & cons — compared head-to-head.
Armis Centrix™ IT/OT Security is a commercial operational technology network segmentation tool by Armis. Sphyrna HFD Data Diode is a commercial operational technology network segmentation tool by Sphyrna Security. Compare features, ratings, integrations, and community reviews side by side to find the best operational technology network segmentation fit for your security stack.
Based on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Enterprise and mid-market teams running converged IT/OT environments will get the most from Armis Centrix™ IT/OT Security because it actually maps segmentation policy to device reality instead of just visualizing the network topology. The platform covers all five NERC CIP compliance domains and generates ACLs directly from segmentation rules, which matters when you're auditing brownfield industrial sites where manual segmentation documentation is nonexistent. Skip this if your OT environment is air-gapped or if you need deep forensic visibility into lateral movement after breach; Centrix prioritizes prevention and continuous conformance monitoring over post-incident investigation.
Enterprise and mid-market OT security teams protecting critical infrastructure from east-west lateral movement will get the most from Sphyrna HFD Data Diode because it enforces unidirectional data flow at wire speed with hardware-level assurance that no firmware or software compromise can bypass. The FPGA architecture with separate ingress and egress quads plus encrypted, signed rulesets mean you can filter at layers 2-4 and decrypt traffic for inspection without creating a single point of trust failure on the network path itself. Skip this if your environment is predominantly IT-focused or you need bidirectional segmentation; data diodes are inherently one-way tools and there's no workaround for that constraint.
IT/OT security platform for converged environments with asset visibility
FPGA-based hardware filtering data diode for unidirectional data transfer
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Common questions about comparing Armis Centrix™ IT/OT Security vs Sphyrna HFD Data Diode for your operational technology network segmentation needs.
Armis Centrix™ IT/OT Security: IT/OT security platform for converged environments with asset visibility. built by Armis. Core capabilities include Asset visibility and discovery for IT and OT devices, Network segmentation visualization and management, Compliance mapping to NERC, MITRE ATT&CK, ISA/IEC 62443, ISO 27001, NIST SP 800-82..
Sphyrna HFD Data Diode: FPGA-based hardware filtering data diode for unidirectional data transfer. built by Sphyrna Security. Core capabilities include FPGA-based hardware filtering with 650K logic cells, Unidirectional data transfer with physical and logical assurance, Wire-speed filtering for ISO layers 2-4..
Both serve the Operational Technology Network Segmentation market but differ in approach, feature depth, and target audience.
Armis Centrix™ IT/OT Security differentiates with Asset visibility and discovery for IT and OT devices, Network segmentation visualization and management, Compliance mapping to NERC, MITRE ATT&CK, ISA/IEC 62443, ISO 27001, NIST SP 800-82. Sphyrna HFD Data Diode differentiates with FPGA-based hardware filtering with 650K logic cells, Unidirectional data transfer with physical and logical assurance, Wire-speed filtering for ISO layers 2-4.
Armis Centrix™ IT/OT Security is developed by Armis. Sphyrna HFD Data Diode is developed by Sphyrna Security. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.
Armis Centrix™ IT/OT Security and Sphyrna HFD Data Diode serve similar Operational Technology Network Segmentation use cases: both are Operational Technology Network Segmentation tools. Review the feature comparison above to determine which fits your requirements.
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