NVIDIA Mellanox Spectrum SN5400 64-port 400GbE Ethernet Switch

The NVIDIA Mellanox Spectrum SN5400 is a 64-port 400GbE Ethernet switch purpose-built for high-performance data center aggregation and AI cluster interconnect applications. The switch employs Mellanox Spectrum-4 ASIC architecture, delivering 51.2 Tbps of aggregate throughput with non-blocking fabric performance across all ports simultaneously. The SN5400 integrates advanced congestion management, in-network computing capabilities, and support for both Ethernet and InfiniBand protocols, enabling deterministic performance for latency-sensitive AI training and inference workloads.

Architecturally, the switch supports multiple deployment modes including standard Layer 2/3 operation, RDMA over Converged Ethernet (RoCE v2), and lossless Ethernet configurations essential for GPU cluster communication. The system provides comprehensive telemetry and monitoring through NVIDIA's NetQ platform, enabling real-time visibility into network performance and traffic patterns. Internal buffer architecture and traffic prioritization mechanisms ensure predictable latency and minimal packet loss in dense cluster environments.

The SN5400 is optimized for hyperscale cloud infrastructure, AI/ML training clusters, high-performance computing (HPC) environments, and enterprise data center modernization initiatives requiring 400GbE aggregation density.

Ideal for

• AI/ML cluster aggregation layer connecting 64 GPU nodes with 400GbE direct attach or optical interconnect
• Top-of-rack switching for hyperscale data centers requiring non-blocking 51.2 Tbps throughput
• High-performance computing (HPC) environments demanding lossless Ethernet and RDMA optimization
• Financial services data center backbone consolidation with deterministic latency requirements
• Large-scale distributed training infrastructure for foundation models and generative AI workloads
• Multi-tenant cloud infrastructure with advanced QoS and traffic isolation capabilities

Technical specifications

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.