Shipping included*
Exclusions
Additional shipping fees may apply in rare circumstances for deliveries outside standard service areas. In most cases, this only potentially affects shipments to the Northwest Territories and Yukon, as well as certain heavy or oversized items.
HPE S2T77A SN3420M Ethernet Switch - 48 x 25GbE SFP28 + 12 x 100GbE QSFP28 Slots - 1U Rackmount - 3-Year Warranty
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
The SN3420M operates on 100 Gigabit Ethernet and 25 Gigabit Ethernet technologies, implementing 100GBase-X and 25GBase-X network standards for robust optical fiber performance. With a maximum data transfer rate of 12.50 GB/s, this switch handles intensive data flows with minimal latency, making it suitable for aggregation and core switching roles.
Its expansion slot architecture supports SFP28, QSFP28, SFP+, and SFP transceivers, allowing network administrators to tailor connectivity with various fiber optic or copper modules. The switch's power design incorporates two built-in power supplies that maintain accurate voltage regulation across all components, enhancing reliability in critical environments.
Relevant factors for this section include Port/Expansion Slot Details, Media Type Supported, Ethernet Technology, Network Technology. When those points are considered together, they give buyers a clearer picture of how the product is equipped, how it fits into deployment, and what kind of day-to-day role it is meant to support.
Key Product Advantages
The HPE SN3420M combines high port density with advanced uplink capabilities, creating a scalable foundation for growing network infrastructures. Its 100GbE QSFP28 slots provide substantial uplink bandwidth for backbone connections, while the 25GbE SFP28 slots offer cost-effective server and storage connectivity.
High-Bandwidth Backbone
100 Gigabit Ethernet technology delivers reliable, high-performance connectivity for network backbone segments, ensuring smooth data transmission between critical infrastructure components.
- Supports 100GBase-X standards
- Enables aggregation of multiple lower-speed links
- Reduces bottlenecks in data-intensive applications
Fiber-Optic Flexibility
Optical fiber support allows the switch to span longer distances between network devices while maintaining high data transmission rates and immunity to electromagnetic interference.
- Compatible with various SFP/SFP+ modules
- Enables campus and data center connectivity
- Supports future bandwidth upgrades
Deployment / Use Cases
The SN3420M excels in environments requiring high-density switching with substantial uplink capacity. Its combination of 25GbE server-facing ports and 100GbE uplink ports makes it ideal for modern data center topologies where east-west traffic flows dominate.
Enterprise network cores benefit from this switch's ability to aggregate traffic from multiple access switches while providing high-speed interconnections between data center pods. The optical fiber support extends its deployment flexibility across campus networks, connecting buildings with high-bandwidth fiber links.
Data Center Aggregation
Deploy as a leaf or spine switch in Clos architectures, connecting servers with 25GbE interfaces while providing 100GbE uplinks to core switches or routers.
High-Performance Computing
Support HPC clusters and storage arrays requiring low-latency, high-bandwidth interconnects between compute nodes and parallel file systems.
What's in the Box
The package includes all essential components for immediate deployment in your network infrastructure.
Package contents include SN3420M Ethernet Switch, 2 x Power Supply. These included items support setup, installation, and immediate deployment without needing to source the core bundled accessories separately.
Highlights
- 48x 25GbE SFP28 expansion slots for high-density server and storage connectivity
- 12x 100GbE QSFP28 expansion slots for high-bandwidth uplink and backbone connections
- Supports optical fiber media for long-distance, high-speed data transmission
- 1U rackmount design optimizes space efficiency in standard server racks
- Dual power supplies provide redundancy for continuous operation
- Maximum data transfer rate of 12.50 GB/s handles intensive network traffic
- Compatible with SFP28, QSFP28, SFP+, and SFP transceiver modules
- 3-year limited warranty from HPE
Specifications
| Specifications | |
|---|---|
| Manufacturer | Hewlett Packard Enterprise |
| Manufacturer Part Number | S2T77A |
| Brand Name | HPE |
| Product Series | M |
| Product Model | SN3420M |
| Product Name | SN3420M Ethernet Switch |
| Product Type | Ethernet Switch |
| Interfaces/Ports | |
| Port/Expansion Slot Details | 48 x 25Gigabit Ethernet SFP28 Expansion Slot,12 x 100Gigabit Ethernet QSFP28 Expansion Slot |
| Media & Performance | |
| Media Type Supported | Optical Fiber |
| Ethernet Technology | 100 Gigabit Ethernet,25 Gigabit Ethernet |
| Network Technology | 100GBase-X,25GBase-X |
| Maximum Data Transfer Rate | 12.50 GB/s |
| I/O Expansions | |
| Total Number of Expansion Slots | 60 |
| Expansion Slot Type | SFP28,QSFP28,SFP+,SFP |
| Power Description | |
| Power Source | Power Supply |
| Number of Power Supplies Supported | 2 |
| Physical Characteristics | |
| Compatible Rack Unit | 1U |
| Miscellaneous | |
| Package Contents | SN3420M Ethernet Switch 2 x Power Supply |
| Warranty | |
| Limited Warranty | 3 Year |
User Manual
FAQ
What are the port configurations on the HPE SN3420M switch?
The SN3420M provides 48x 25 Gigabit Ethernet SFP28 expansion slots and 12x 100 Gigabit Ethernet QSFP28 expansion slots, totaling 60 expansion slots. This configuration offers high-density 25GbE connectivity for servers and storage devices, plus substantial 100GbE uplink capacity for backbone connections.
Does this switch support Power over Ethernet (PoE)?
No, the HPE SN3420M does not support Power over Ethernet. This switch is designed for data center and high-performance networking applications where optical fiber connectivity and high bandwidth are prioritized over PoE capabilities.
What type of media does the SN3420M support for network connections?
The SN3420M supports optical fiber media through its SFP28 and QSFP28 expansion slots. This allows the use of various fiber optic transceivers to connect over longer distances while maintaining high data transmission rates between network components.
How many rack units does this switch occupy?
The HPE SN3420M occupies 1 rack unit (1U) in standard 19-inch server racks. This compact form factor maximizes port density per rack space, making it suitable for space-constrained data center environments.
What is the power supply configuration for this switch?
The SN3420M supports two power supplies, both included in the package. This dual-power configuration provides redundancy, ensuring continuous operation if one power supply fails. The built-in power supplies maintain accurate voltage regulation for all switch components.
What warranty coverage does HPE provide for this switch?
HPE provides a 3-year limited warranty for the SN3420M Ethernet Switch. This warranty covers defects in materials and workmanship under normal use, offering protection for your networking investment during the critical initial deployment period.
| Qty | Price | Available |
|---|
