HPE SN3420M 25GbE Ethernet Switch with NVIDIA Cumulus Linux
The HPE SN3420M is a high-performance 25GbE Ethernet switch engineered for modern data center architectures requiring exceptional port density and reliability. This 1U switch delivers 48 SFP28 ports and 12 QSFP28 ports, providing flexible connectivity from 1GbE to 100GbE speeds. Pre-loaded with NVIDIA Cumulus Linux, the SN3420M eliminates deployment delays and ensures predictable performance with zero packet loss at line rate across all port configurations and packet sizes. Ideal for leaf, spine, and super-spine deployments in storage and server networks, this switch combines enterprise-grade reliability with open networking flexibility.
Key Features
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48 SFP28 Ports — High-density 25GbE connectivity for maximum rack efficiency
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12 QSFP28 Ports — Support for 40GbE, 50GbE, and 100GbE uplink speeds
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Power-to-Connector Airflow — Optimized thermal design for continuous data center operation
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NVIDIA Cumulus Linux Pre-Installed — Open networking OS for leaf, spine, and super-spine roles
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Zero Packet Loss — Line-rate performance guaranteed across all port speeds and packet sizes
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1U Form Factor — Space-efficient design for full-rack deployment
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Multi-Speed Support — Flexible port speeds from 1GbE to 100GbE on demand
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Enterprise Reliability — Predictable performance for mission-critical storage and server networks
Technical Specifications
| Specification |
Details |
| Manufacturer |
Hewlett Packard Enterprise (HPE) |
| Part Number |
S2T77A |
| Model |
SN3420M |
| Switch Type |
25GbE Ethernet Switch, M-series Storage |
| Port Configuration |
48x SFP28 + 12x QSFP28 |
| Port Speeds |
1GbE, 10GbE, 25GbE, 40GbE, 50GbE, 100GbE |
| Operating System |
NVIDIA Cumulus Linux (factory-installed) |
| Form Factor |
1U Rack Mount |
| Airflow Design |
Power-to-Connector |
| Performance |
Zero packet loss at line rate, all ports and packet sizes |
| Applications |
Leaf, spine, super-spine data center deployments |
| Network Role |
Storage and server network connectivity |
Frequently Asked Questions
What is the HPE SN3420M used for?
The HPE SN3420M is a 25GbE Ethernet switch designed for high-performance data center networks. It serves as a leaf, spine, or super-spine switch in storage and server environments, providing dense 25GbE connectivity with optional 100GbE uplinks through QSFP28 ports.
Does the SN3420M come with NVIDIA Cumulus Linux?
Yes, the S2T77A model includes NVIDIA Cumulus Linux pre-installed from the factory. This open networking OS enables flexible network automation and management. Note: HPE switches with factory-installed Cumulus cannot be converted to HPE ONYX or ONIE SKUs.
What port speeds does the SN3420M support?
The SN3420M supports flexible port speeds ranging from 1GbE to 100GbE. The 48 SFP28 ports deliver 25GbE connectivity, while the 12 QSFP28 ports support 40GbE, 50GbE, and 100GbE speeds for high-capacity uplinks.
Is the SN3420M suitable for storage networks?
Yes, the HPE SN3420M is specifically engineered for storage and server networks. Its zero packet loss guarantee at line rate and power-to-connector airflow design ensure reliable, high-performance connectivity for demanding storage applications.
