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Sphyrna NGXS UGW-200 is a commercial operational technology network segmentation tool by Sphyrna Security. Nexor Data Diode is a commercial operational technology network segmentation tool by nexor. 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 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.
Enterprise and mid-market operations teams protecting critical infrastructure will want Nexor Data Diode when network segmentation must survive determined adversaries; this is one of the few tools that enforces unidirectionality at the hardware level, eliminating the compromise vectors that plague IP-routed air gaps. Common Criteria EAL7+ certification and alignment with NCSC and NATO standards mean you're getting physical enforcement, not just firewall rules. Skip this if you need bidirectional communication or expect frequent configuration changes; the sealed, maintenance-free design is a strength for static security boundaries but a liability for dynamic environments.
Unidirectional gateway with 25Gbps interfaces for secure one-way data transfer
Hardware device enforcing unidirectional data transfer between networks.
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Common questions about comparing Sphyrna NGXS UGW-200 vs Nexor Data Diode for your operational technology network segmentation needs.
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..
Nexor Data Diode: Hardware device enforcing unidirectional data transfer between networks. built by nexor. headquartered in United Kingdom. Core capabilities include Unidirectional optical data link with physical enforcement, Tamper-evident sealed hardware enclosure, No IP address or management interface..
Both serve the Operational Technology Network Segmentation market but differ in approach, feature depth, and target audience.
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