NVIDIA Spectrum-3 SN4600 Ethernet Switch
Brand: NVIDIA | Category: Network Switches
SKU: NVID-MSN4600CS2FO | Part #: MSN4600-CS2FO | MPN: MSN4600-CS2FO
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About the NVIDIA Spectrum-3 SN4600 Ethernet Switch
The NVIDIA Spectrum-3 SN4600 is a 64-port 200GbE Ethernet switch based on the Spectrum-3 ASIC, delivering 25.6Tb/s of aggregate non-blocking switching bandwidth in a 2U form factor. It occupies a unique position in the NVIDIA switching portfolio by offering native 200GbE port speed, which enables high-bandwidth server connectivity for dual-port 100GbE server NICs operating in bonded/MLAG configurations or direct 200GbE NIC connections. The SN4600 supports breakout to 100GbE and 50GbE, providing additional flexibility for mixed-speed environments.
The SN4600 inherits the full Spectrum-3 feature set, including hardware RoCEv2 support with PFC and ECN for lossless RDMA, EVPN/VXLAN for overlay networking, and comprehensive BGP/OSPF routing. It runs NVIDIA Cumulus Linux with full NetQ telemetry integration, providing the same automation, monitoring, and troubleshooting capabilities as the rest of the Spectrum-3 family. Its 200GbE native port speed makes it particularly effective as an aggregation or spine switch in fabrics where leaf switches provide 50GbE or 100GbE server connectivity and require high-bandwidth uplinks without committing to full 400GbE spine infrastructure.
The SN4600 is selected by enterprises seeking a cost-effective bridge between 100GbE and 400GbE generations, particularly for storage aggregation, HPC cluster interconnect, and AI inference serving workloads where 200GbE per-port bandwidth provides a meaningful step up over 100GbE without the full cost of 400GbE infrastructure. It is also used as a direct connectivity switch for storage arrays and servers equipped with 200GbE NICs.
Ideal for
- Spine switch in leaf-spine fabrics with 100GbE leaf switches requiring high-bandwidth 200GbE uplinks
- High-density storage aggregation switch for 100GbE NVMe-oF and SAN traffic
- Direct top-of-rack switch for servers with 200GbE NIC connectivity
- HPC cluster fabric aggregation in 100GbE/200GbE mixed-speed environments
- AI inference serving fabric switch where 200GbE provides adequate per-server bandwidth
- Transitional fabric spine switch for enterprises migrating from 100GbE toward 400GbE
Technical specifications
| Manufacturer | NVIDIA |
| Part Number | MSN4600-CS2FO |
| Switch ASIC | NVIDIA Spectrum-3 |
| Ethernet Speed | 200GbE per port (native) |
| Total Ports | 64 x QSFP56 200GbE ports |
| Breakout Support | 64 x 200GbE, 128 x 100GbE, 256 x 50GbE |
| Aggregate Bandwidth | 25.6 Tb/s non-blocking |
| Forwarding Rate | 19.0 Bpps |
| Latency | <600 ns port-to-port (cut-through mode) |
| Buffer Architecture | Shared and dedicated buffers with Spectrum-3 advanced management |
| RDMA Support | RoCEv2 with PFC, ECN, hardware-based congestion control |
| Layer 2 Features | VLAN, MSTP/RSTP, LACP, MLAG, VxLAN, EVPN |
| Layer 3 Features | BGP (EVPN), OSPF, IS-IS, ECMP, BFD, PIM, IGMP snooping |
| Management Interface | 1 x 10/100/1000 RJ-45 OOB; USB console |
| Operating System | NVIDIA Cumulus Linux |
| Telemetry | NVIDIA NetQ streaming telemetry, gNMI, SNMP, sFlow |
| Form Factor | 2U rack-mount |
| Dimensions | 87 x 440 x 540 mm (H x W x D) |
| Power Supply | Dual redundant hot-swap PSUs, 1400W typical |
| Cooling | Hot-swap redundant fans, port-side exhaust or intake |
| Operating Temperature | 0°C to 45°C |
| Standards | IEEE 802.3cd (200GbE), 802.1Q, 802.3ad, 802.3x, 802.1X |
Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.
Technical Specifications
| Brand | NVIDIA |
| Category | Network Switches |
| SKU | NVID-MSN4600CS2FO |
| Part Number | MSN4600-CS2FO |
| Condition | New |
| Switch ASIC | NVIDIA Spectrum-3 |
| Ethernet Speed | 200GbE per port (native) |
| Total Ports | 64 x QSFP56 200GbE ports |
| Breakout Support | 64 x 200GbE, 128 x 100GbE, 256 x 50GbE |
| Aggregate Bandwidth | 25.6 Tb/s non-blocking |
| Forwarding Rate | 19.0 Bpps |
| Latency | <600 ns port-to-port (cut-through mode) |
| Buffer Architecture | Shared and dedicated buffers with Spectrum-3 advanced management |
| RDMA Support | RoCEv2 with PFC, ECN, hardware-based congestion control |
| Layer 2 Features | VLAN, MSTP/RSTP, LACP, MLAG, VxLAN, EVPN |
| Layer 3 Features | BGP (EVPN), OSPF, IS-IS, ECMP, BFD, PIM, IGMP snooping |
| Management Interface | 1 x 10/100/1000 RJ-45 OOB; USB console |
| Operating System | NVIDIA Cumulus Linux |
| Telemetry | NVIDIA NetQ streaming telemetry, gNMI, SNMP, sFlow |
| Form Factor | 2U rack-mount |
| Dimensions | 87 x 440 x 540 mm (H x W x D) |
| Power Supply | Dual redundant hot-swap PSUs, 1400W typical |
| Cooling | Hot-swap redundant fans, port-side exhaust or intake |
| Operating Temperature | 0°C to 45°C |
| Standards | IEEE 802.3cd (200GbE), 802.1Q, 802.3ad, 802.3x, 802.1X |
Frequently Asked Questions about NVIDIA Spectrum-3 SN4600 Ethernet Switch
What does the NVIDIA Spectrum-3 SN4600 Ethernet Switch do?
The NVIDIA Spectrum-3 SN4600 Ethernet Switch 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-3 SN4600 Ethernet Switch?
Key specifications for the NVIDIA Spectrum-3 SN4600 Ethernet Switch: new condition; manufacturer NVIDIA; part number MSN4600-CS2FO; switch asic NVIDIA Spectrum-3; ethernet speed 200GbE per port (native); total ports 64 x QSFP56 200GbE ports; breakout support 64 x 200GbE, 128 x 100GbE, 256 x 50GbE. Manufacturer part number MSN4600-CS2FO. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the NVIDIA Spectrum-3 SN4600 Ethernet Switch compatible with my infrastructure?
The NVIDIA Spectrum-3 SN4600 Ethernet Switch 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.