NVIDIA Spectrum SN3420
Brand: NVIDIA | Category: Network Switches
SKU: SN3420-4S | Part #: SN3420-4S | MPN: SN3420-4S
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About the NVIDIA Spectrum SN3420
The NVIDIA Spectrum SN3420 from NVIDIA is enterprise-grade Network Switches hardware built for data centers. It features 25GbE interface, 200/400GbE speed. The NVIDIA Spectrum SN3420 is a 1U open Ethernet switch built on the NVIDIA Spectrum-2 ASIC, delivering 1.2 Tbps of non-blocking switching capacity across 48 x 25GbE SFP28 ports and 12 x 100GbE QSFP28 uplink ports. Engineered for latency-sensitive and bandwidth-intensive workloads, the platform supports Advanced Ethernet features including RoCE (RDMA over Converged Ethernet), ECN, PFC, and DCQCN congestion control, making it well-suited for high-performance compute and AI/ML Available in brand new condition. NVIDIA network switches products are trusted by enterprises and data centers worldwide. Available from Omnixon Global. Contact our sales team to request a quote.
Technical Specifications
| Brand | NVIDIA |
| Category | Network Switches |
| SKU | SN3420-4S |
| Part Number | SN3420-4S |
| Condition | New |
| Interface | 25GbE |
| Speed | 200/400GbE |
| Manufacturer Part Number | SN3420-4S |
| ASIC | NVIDIA Spectrum-2 |
| Form Factor | 1U rack-mount |
| Total Switching Capacity | 1.2 Tbps |
| Forwarding Rate | 900 Mpps |
| 25GbE SFP28 Ports | 48 |
| 100GbE QSFP28 Uplink Ports | 12 |
| Port Breakout Support | 100GbE QSFP28 ports support 4x25GbE breakout |
| Supported Network OS | NVIDIA Cumulus Linux, NVIDIA Onyx |
| Layer 2 Protocols | VLAN, MSTP, MLAG, LACP |
| Layer 3 Protocols | BGP, OSPF, VXLAN, BGP-EVPN |
| RDMA Support | RoCEv2 with ECN, PFC, DCQCN |
| Management Interfaces | 1 x RJ-45 out-of-band management, 1 x USB |
| Power Supplies | Redundant hot-swappable PSUs |
| Airflow Options | Port-side exhaust (PSE) / Port-side intake (PSI) |
| MAC Address Table Size | 128K entries |
| IPv4 Route Table Size | 80K entries |
| IPv6 Route Table Size | 48K entries |
| Operating Temperature | 0°C to 40°C |
| Rack Units | 1U |
Frequently Asked Questions about NVIDIA Spectrum SN3420
What does the NVIDIA Spectrum SN3420 do?
The NVIDIA Spectrum SN3420 is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
What are the headline specs of the NVIDIA Spectrum SN3420?
Key specifications for the NVIDIA Spectrum SN3420: new condition; network type Ethernet Switch; network port config 32x 200GbE + 2x 400GbE; network speed 200/400GbE; network switching capacity 6.4 Tbps; network forwarding rate 4.76 Bpps; network power consumption 280W. Manufacturer part number SN3420-4S. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the NVIDIA Spectrum SN3420 compatible with my infrastructure?
The NVIDIA Spectrum SN3420 interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.