Mellanox MSN4600-CS2R Spectrum-2 SN4600C 100GbE Ethernet Switch, 64 Ports
Brand: Mellanox | Category: Network Switches
SKU: MEL-MSN4600-CS2R | Part #: MSN4600-CS2R | MPN: MSN4600-CS2R
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About the Mellanox MSN4600-CS2R Spectrum-2 SN4600C 100GbE Ethernet Switch, 64 Ports
With a switching capacity of 12.8 Tbps and a forwarding rate of 9.5 Bpps, the Mellanox MSN4600-CS2R Spectrum-2 SN4600C delivers line-rate performance across all 64 ports, making it purpose-built for hyperscale data centre operators and high-performance computing environments that demand zero packet loss at scale. This 2U rack-mount switch from Mellanox (NVIDIA) combines density, throughput, and sub-microsecond latency in a single platform designed for the most demanding network architectures.
The MSN4600-CS2R (part number MSN4600-CS2R) features 64 × QSFP28 ports, each delivering 100GbE connectivity, and integrates the Mellanox Spectrum-2 ASIC to enable advanced switching, routing, and encapsulation tasks in hardware. Network architects and IT procurement teams will appreciate the support for RoCEv1 and RoCEv2 with PFC and ECN, VXLAN hardware offload, and streaming telemetry via gNMI and What Just Happened (WJH) diagnostics. Redundant, hot-swappable AC power supplies and fan modules ensure continuous uptime, while rear-to-front airflow optimizes thermal performance in dense rack deployments. The switch runs NVIDIA Cumulus Linux or NVIDIA Onyx, with native BGP, OSPF, and ECMP routing capabilities.
Key Specifications
- Manufacturer: Mellanox (NVIDIA)
- Form Factor: 2U rack-mount
- Port Configuration: 64 × QSFP28 (100GbE per port)
- Switching Capacity: 12.8 Tbps
- Forwarding Rate: 9.5 Bpps
- Latency: Sub-microsecond cut-through
- ASIC: Mellanox Spectrum-2
- RoCE Support: RoCEv1 and RoCEv2 with PFC and ECN
- VXLAN Support: Hardware encapsulation and decapsulation
- Power Supply: Redundant, hot-swappable AC
- Supported NOS: NVIDIA Cumulus Linux, NVIDIA Onyx
- Standards Compliance: IEEE 802.3cd, IEEE 802.1Q, IEEE 802.1Qbb, IEEE 802.1p
For detailed
Technical Specifications
| Brand | Mellanox |
| Category | Network Switches |
| SKU | MEL-MSN4600-CS2R |
| Part Number | MSN4600-CS2R |
| Condition | New |
| Capacity | 100Gb |
| Form Factor | 2U |
| Interface | Ethernet |
| Speed | 100GbE |
| Manufacturer Part Number | MSN4600-CS2R |
| Series | Spectrum-2 SN4600C |
| Form Factor | 2U rack-mount |
| Total Ports | 64 x QSFP28 |
| Port Speed | 100GbE per port (QSFP28) |
| Switching Capacity | 12.8 Tbps |
| Forwarding Rate | 9.5 Bpps |
| ASIC | Mellanox Spectrum-2 |
| Latency | Sub-microsecond cut-through |
| Power Supply | Redundant, hot-swappable AC power supplies |
| Airflow Direction | Rear-to-front (port-side exhaust) |
| Fan Modules | Hot-swappable redundant fan modules |
| Supported NOS | NVIDIA Cumulus Linux, NVIDIA Onyx |
| RoCE Support | Yes — RoCEv1 and RoCEv2 with PFC and ECN |
| Management Interfaces | Out-of-band Ethernet management port, console (RJ-45) |
| Routing Protocols | BGP, OSPF, ECMP (NOS-dependent) |
| VXLAN Support | Yes — hardware VXLAN encapsulation/decapsulation |
| Advanced Telemetry | What Just Happened (WJH), streaming telemetry via gNMI |
| Standards Compliance | IEEE 802.3cd (100GBASE), IEEE 802.1Q, IEEE 802.1Qbb, IEEE 802.1p |
Frequently Asked Questions about Mellanox MSN4600-CS2R Spectrum-2 SN4600C 100GbE Ethernet Switch, 64 Ports
What does the Mellanox MSN4600-CS2R Spectrum-2 SN4600C 100GbE Ethernet Switch, 64 Ports do?
The Mellanox MSN4600-CS2R Spectrum-2 SN4600C 100GbE Ethernet Switch, 64 Ports 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 Mellanox MSN4600-CS2R Spectrum-2 SN4600C 100GbE Ethernet Switch, 64 Ports?
Key specifications for the Mellanox MSN4600-CS2R Spectrum-2 SN4600C 100GbE Ethernet Switch, 64 Ports: capacity 100Gb; form factor 2U; interface Ethernet; new condition; series Spectrum-2 SN4600C; ports 64x QSFP28 100GbE; form factor 2U; airflow C2P / rear-to-front airflow; use case Spine, leaf, storage, and cloud Ethernet fabrics. Manufacturer part number MSN4600-CS2R. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the Mellanox MSN4600-CS2R Spectrum-2 SN4600C 100GbE Ethernet Switch, 64 Ports compatible with my infrastructure?
The Mellanox MSN4600-CS2R Spectrum-2 SN4600C 100GbE Ethernet Switch, 64 Ports 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.