SNE-X 400G Performance Upgrade

Edinburgh, Scotland – April, 2025

Calnex Solutions plc (LON:CLX) today announces a significant performance upgrade to the SNE-X 400G, building upon its status as the industry’s first 400GbE network emulator. These new capabilities unlock broader market potential and deliver best-in-class network emulation for latency-sensitive applications like Edge AI deployments and for any industry that relies on high-speed Ethernet infrastructure.

Still first. Now faster. The enhanced Calnex SNE-X 400G delivers upgraded throughput, responsiveness, and flexibility. It is purpose-built to meet the evolving demands of testing AI environments, 400G routing evaluation, and high-performance data center switch validation. Its capabilities are designed to test complex network architectures and ensure performance under heavy load.

This SNE-X 400G update increases support for AI infrastructure testing, with enhanced handling of RoCEv2 bidirectional traffic and high-precision emulation of real-world network conditions. The result is a more precise, scalable test platform to help operators and infrastructure builders validate delay-sensitive workloads across increasingly complex and evolving Ethernet environments. This solution empowers customers to accelerate the deployment of AI services and reduce the risk of network bottlenecks and failures.

With this upgrade, Calnex continues its position to provide high-performance network emulation for emerging infrastructure, from cloud-scale data centers to Edge AIspecific deployments , empowering customers to proactively test and optimize job completion times, congestion management, and routing efficacy. The SNE-X 400G is designed to help customers with their priorities of performance, scalability, reliability, and cost-efficiency.

Early traction among leading global hyperscalers , telecommunications companies , research institutions, and network equipment manufacturers has affirmed the demand for enhanced 400G emulation tools. This updated release enables Calnex to move beyond early adopters and engage with a broader pool of performance-driven customers across these sectors, meeting the needs of a diverse range of buyers from Network Architects to R&D Leads.

Adam Paterson, Head of Product Management mentioned “The SNE-X 400G performance upgrade is a testament to our continued excellence in product innovation, directly addressing the critical need to validate complex, high-speed network architectures and solve for latency-sensitive applications in both our established markets and the next wave of emerging industries.”

The SNE-X 400G helps with validating interoperability with other AI infrastructure components and provides the necessary tools to test the performance of network equipment under realistic AI traffic conditions. It also helps Telcos test 5G networks for AI workloads and validate edge AI deployments.

For more information, please contact: Lee Noble at lee.noble@calnexsol.com

About Calnex Solutions

Calnex designs, produces and markets test instrumentation and solutions for network synchronisation and network emulation, enabling its customers to validate the performance of the critical infrastructure associated with telecoms networks. To date, Calnex has secured and delivered orders to over 600 customer sites in 68 countries across the world. Customers include BT, China Mobile, NTT, Ericsson, Nokia, Intel, Qualcomm, IBM and Meta.

Founded in 2006, Calnex is headquartered in Linlithgow, Scotland, with additional locations in Belfast, Northern Ireland and California in the US, supported by sales teams in China and India. Calnex has a global network of partners, providing a worldwide distribution capability.