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Sphyrna HFD Data Diode is a commercial operational technology network segmentation tool by Sphyrna Security. Sphyrna NGXS UGW-200 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 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.
Enterprise and mid-market security teams protecting industrial control systems or classified networks from data exfiltration need the Sphyrna NGXS UGW-200 because its hardware-enforced unidirectional gateway eliminates the attack surface that traditional firewalls leave open. NSA approval plus Common Criteria EAL 4+ certification, paired with 20Gbps maximum throughput over 25Gbps interfaces, means you're getting speed without sacrificing the cryptographic assurance that regulators actually care about. Skip this if your threat model is application-layer attacks or you need bidirectional control; unidirectional gateways are a hard architectural choice that only works when one-way data flow matches your actual use case.
FPGA-based hardware filtering data diode for unidirectional data transfer
Unidirectional gateway with 25Gbps interfaces for secure one-way data transfer
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Common questions about comparing Sphyrna HFD Data Diode vs Sphyrna NGXS UGW-200 for your operational technology network segmentation needs.
Sphyrna HFD Data Diode: FPGA-based hardware filtering data diode for unidirectional data transfer. built by Sphyrna Security. headquartered in Canada. 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..
Sphyrna NGXS UGW-200: Unidirectional gateway with 25Gbps interfaces for secure one-way data transfer. built by Sphyrna Security. headquartered in Canada. Core capabilities include 25Gbps network interfaces with high-speed data diode, Unidirectional data flow enforcement, Intel Xeon Processor D-2775TE with 512GB RAM..
Both serve the Operational Technology Network Segmentation market but differ in approach, feature depth, and target audience.
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