NVIDIA Spectrum-3 SN4700 32-Port 400GbE 1U Spine Switch
Compact 1U 400GbE spine with 12.8 Tb/s and RoCEv2.
We help you choose, configure, and deliver the right system — no obligation.
Configuration at a Glance
Tailored per engagement. Full technical overview below.
Overview
The Spectrum-3 SN4700 packs 32 ports of 400GbE and 12.8 Tb/s of switching into a 1U chassis for spine, super-spine, and high-density leaf roles. Each switch is specified, configured, tested, and warranty-backed, sourced through NVIDIA-authorized channels and delivered ready for production.
Who This Solution Is For
Business Benefits
Space-efficient spine
Thirty-two 400GbE ports in a single rack unit deliver high aggregate bandwidth without consuming rack space.
AI-ready Ethernet
Hardware RoCEv2 and deep telemetry provide low-latency, lossless transport for GPU and storage traffic.
Open and supportable
Cumulus Linux or SONiC plus authorized-channel warranty keep operations flexible and fully backed.
Typical Business Use Cases
Spine and super-spine aggregation
High-density 400GbE leaf
RoCEv2 storage and GPU networking
100/200/400GbE migration backbone
Industry Applications
Technical Overview
Powered by the NVIDIA Spectrum-3 ASIC, the SN4700 offers 32 QSFP-DD ports spanning 1GbE to 400GbE with 12.8 Tb/s throughput and 8.4 Bpps processing. A fully shared 64 MB packet buffer, cut-through latency, and RoCEv2 support make it a versatile spine for mixed-speed fabrics.
| Switch ASIC | NVIDIA Spectrum-3 |
| Ports | 32× 400GbE QSFP-DD |
| Switching Capacity | 12.8 Tb/s |
| Packet Rate | 8.4 billion packets/sec |
| Packet Buffer | 64 MB fully shared |
| Fabric Features | RoCEv2, cut-through, deep telemetry |
| Form Factor | 1U, QSFP-DD |
| Network OS | Cumulus Linux / SONiC (open) |
| Warranty | Manufacturer-backed, authorized channel |
Specifications are indicative and configured to each engagement. Request a quote for a configuration tailored to your requirements.
Warranty, Support & Fulfillment
Every system ships from an authorized channel, configured and tested, with the documentation enterprise buyers need — backed by warranty and a dedicated account team.
Enterprise Warranty
Full manufacturer warranty with optional on-site, next-business-day support and extended coverage.
Authorized Channel
Sourced through Tier-1 distribution and OEM partners — never grey market. Asset & warranty records included.
Lead Time & Deployment
48-hour quotes, then configured, burn-in tested, and delivered on a committed schedule.
Nationwide Fulfillment
Coordinated logistics, rack-and-stack, and delivery wherever your infrastructure lives.
Frequently Asked Questions
Where does the SN4700 fit versus the SN5600?
The 1U SN4700 (12.8 Tb/s, 400GbE) suits mid-scale spines and 400GbE-class clusters, while the SN5600 targets the largest 800GbE Spectrum-X fabrics. We recommend the right tier for your bandwidth and growth plans.
Can it break out to 100GbE for existing servers?
Yes. The QSFP-DD ports split to 200/100/50/25GbE with splitter cables, so it aggregates current servers while providing a 400GbE-ready uplink path. Breakout profiles are configured before delivery.
Does it support lossless AI traffic?
It implements hardware RoCEv2 with congestion control and telemetry, delivering the low-latency lossless transport GPU and NVMe-oF workloads require.
Hardware Assistance
Configure the NVIDIA Spectrum-3 SN4700 32-Port 400GbE 1U Spine Switch with Nexus Compute
Tell us your requirements and a hardware specialist will help you specify, configure, and quote the right system — typically within two business days. No obligation.