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Sphyrna HFD Data Diode is a commercial operational technology network segmentation tool by Sphyrna Security. Sphyrna NGXS UGW-100 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 sensitive OT networks from east-west lateral movement need the Sphyrna NGXS UGW-100 because hardware-enforced unidirectional gateways are the only architecture that actually stops data exfiltration at the physics level, not the policy level. EAL 4+ Common Criteria and TEMPEST Zone 1 certifications mean this box works in high-assurance environments where software-only controls fail compliance audits. Skip this if your priority is network visibility or threat hunting; the UGW-100 is a one-way valve, not a sensor, and it won't help you detect what's moving across the boundary.
FPGA-based hardware filtering data diode for unidirectional data transfer
Unidirectional gateway for secure one-way data transfer at 10Gbps
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Common questions about comparing Sphyrna HFD Data Diode vs Sphyrna NGXS UGW-100 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-100: Unidirectional gateway for secure one-way data transfer at 10Gbps. built by Sphyrna Security. headquartered in Canada. Core capabilities include Hardware-enforced unidirectional data transfer, 10Gbps interface with 8Gbps maximum throughput, TCP and UDP streaming support..
Both serve the Operational Technology Network Segmentation market but differ in approach, feature depth, and target audience.
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