NVIDIA Spectrum-3 SN4700 - 32×400GbE 1U High-Performance Open Ethernet Switch

NVIDIA Spectrum SN4700 is a high-performance 400GbE Ethernet switch built on the Spectrum-3 ASIC, engineered to deliver ultra-low latency, non-blocking throughput, and deterministic performance for next-generation data centres. With 32 × QSFP-DD 400GbE ports and support for flexible speed configurations from 10GbE to 400GbE, the SN4700 provides a total switching capacity of 25.6Tb/s and 8.4 Bpps of wire-speed forwarding ideal for AI clusters, cloud infrastructure, large-scale enterprise networks, and hyper-converged environments.

Designed for high-density leaf/spine architectures, the SN4700 integrates advanced telemetry, intelligent congestion control, and open-networking support, including NVIDIA Onyx, Cumulus Linux, and ONIE. Its resilient hardware design includes dual hot-swappable power supplies and N+1 redundant fans, with front-to-back or back-to-front airflow options to suit modern data-centre cooling requirements. With deep buffers, dynamic routing capabilities, and consistent performance under load, the SN4700 enables scalable, high-bandwidth fabrics for storage, compute, and high-performance applications.

KEY FEATURES:

• 32 × 400GbE QSFP-DD Ports: Flexible support for 10–400GbE speeds.
• 25.6 Tbps Switching Capacity: Full non-blocking performance for large fabrics
• Ultra-Low Latency: Consistent sub-microsecond forwarding.
• 8.4 Bpps Forwarding Rate: Handles high-rate packet workloads.
• 64 MB Deep Buffers: Stable performance for NVMe-oF and bursty traffic.
• Open Networking: Supports Onyx, Cumulus Linux, and ONIE.
• Advanced Telemetry: Real-time visibility and congestion insights.
• Redundant Design: Dual PSUs and N+1 hot-swap fans.
• Flexible Airflow: P2C and C2P options for any rack.
• Data-Centre Optimised: Ideal for leaf, spine, AI, cloud, and storage fabrics.

TECHNICAL SPECIFICATION:

HARDWARE:

PERFORMANCE:

SECURITY:

MANAGEMENT:

PHYSICAL & ENVIRONMENTAL:

ADVANCED FEATURES:

Adaptive Routing & Real-Time Congestion Control:

The SN4700 incorporates the Spectrum-3 ASIC’s advanced adaptive routing engine, which continuously evaluates network conditions and traffic patterns. Instead of relying on static ECMP hashing, the switch dynamically selects the most efficient path for each flow, eliminating hotspots and congestion build-ups. This ensures smooth performance even during sudden surges in east-west traffic generated by distributed AI training, microservices, and multi-rack clusters. With built-in congestion notification and flow queuing, the SN4700 maintains predictable low latency under sustained loads.

Deep Telemetry, In-Band Visibility & Flow Analytics:

NVIDIA’s in-band network visibility (IBNV) allows the SN4700 to monitor traffic inside the data path, not just at the edge. Operators gain insights into flow latency, buffer usage, queue depth, congestion points, and packet drops in real time. Streaming telemetry exports continuous high-resolution data to observability platforms such as Cumulus NetQ or NVIDIA NEO/UFM. This enables proactive detection of emerging issues, accurate capacity planning, and faster troubleshooting of complex multi-tenant environments.

Scalable VXLAN/EVPN Fabric for Cloud & Multi-Tenant Networks:

With full support for VXLAN and BGP EVPN, the SN4700 can extend Layer 2 networks across a scalable Layer 3 fabric while maintaining efficient MAC/IP learning. EVPN helps optimise traffic paths, reduce flooding, enhance redundancy, and improve isolation between tenants. This capability is crucial for cloud providers, MSPs, virtualised data centres, and environments that require seamless workload mobility across racks or data centres.

Lossless Ethernet & NVMe-oF Optimisation:

The SN4700 is engineered for high-performance storage networks with deep buffering, precise scheduling, and intelligent QoS. These capabilities support lossless Ethernet configurations used in NVMe-over-Fabrics deployments, ensuring minimal latency and consistent performance for high-throughput database clusters, all-flash arrays, and distributed storage platforms like Ceph and Lustre. The switch maintains stable behaviour even during microbursts, improving storage reliability under heavy I/O operations.

Automation, Programmability & DevOps Integration:

With native support for open APIs including REST, gNMI, JSON-RPC, and NETCONF, the SN4700 integrates seamlessly into DevOps pipelines and automation platforms. Infrastructure teams can orchestrate provisioning, updates, and configuration management using Ansible, Puppet, Chef, SaltStack, GitOps workflows, or custom scripts. This reduces onboarding time for large fabrics, eliminates manual configuration errors, and ensures consistent policy enforcement across hundreds of switches.

High Availability Architecture for Zero-Downtime Environments:

The SN4700 is built for continuous operation in mission-critical data centres. Dual hot-swappable PSUs deliver true 1+1 redundancy, and N+1 fan modules protect against cooling failures. Support for non-disruptive software upgrades, fast topology convergence, and redundant control-plane elements enables operators to perform maintenance without service interruption. This makes the SN4700 ideal for financial trading networks, large AI factories, cloud services, and enterprise workloads that cannot tolerate downtime.

Thermal-Optimised, Energy-Efficient Hardware:

The SN4700 uses intelligent thermal algorithms to modulate fan speed and reduce power consumption based on real-time operating conditions. With reversible airflow (P2C or C2P), operators can deploy the switch in any rack orientation without impacting cooling efficiency. This ensures optimal heat management in dense 400G deployments while keeping operational costs low, supporting both performance and sustainability goals in modern data-centre operations.

ORDERING INFORMATION:

WARRANTY & SUPPORT: 

Manufacturers are responsible for warranties, which are based on the purchase date and validity. We make sure the products we sell are delivered on time and in their original condition at Grabnpay. Whether it's physical damage or operational issues, our team will help you find a solution. We help you install, configure, and manage your devices. We'll help you file a warranty claim and guide you every step of the way.

All listed prices reflect standard market rates. Final commercial terms, including volume-based discounts, will be provided based on purchase volume, MOQ, and other applicable criteria. For more information about switches & other accessories, contact our technical support team.