HPE S2T77A | SN3420M 25GbE Data Centre Switch, 48x SFP28, 12x QSFP28, Cumulus

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SKU:S2T77A

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Description

The SN3420M is a 48-port 25GbE SFP28 data centre switch with 12 QSFP28 ports, designed for top-of-rack deployments that need high-density 25GbE server connectivity with 100G-class uplinks. This variant runs the NVIDIA Cumulus network operating system and uses power to connector airflow, so it suits racks where cooling is directed from the power supply side towards the port side.

Built for modern data centre and leaf-spine designs, the switch pairs dense SFP28 server-facing ports with QSFP28 connectivity for uplinks or spine links. Running Cumulus Linux lets network teams manage the switch with familiar Linux tooling and automation workflows.

Features

- High-density 25GbE SFP28 connectivity for top-of-rack server access
- QSFP28 ports for high-speed uplinks or spine connectivity
- Runs NVIDIA Cumulus Linux for Linux-based network management and automation
- Power to connector airflow variant for matching rack cooling layouts

Warranty

Hewlett Packard Enterprise (HPE) offers a standard limited hardware warranty on its products, with coverage periods varying by product line. For instance, HPE ProLiant servers typically come with a 1 to 3-year limited warranty, while other products may have different durations.
Extended Warranty Options via IP Trading:
IP Trading offers tailored extended warranty solutions and support packages for HPE products, ensuring your IT infrastructure remains protected beyond the standard warranty period. Contact our team to explore options that align with your organisation's needs.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- 48 x 25GbE SFP28 ports
- 12 x QSFP28 ports
- Power to connector airflow
- NVIDIA Cumulus Linux network operating system

FAQs

Q: What network operating system does the S2T77A run?
A: This SKU runs NVIDIA Cumulus Linux.

Q: How many ports does the SN3420M have?
A: It provides 48 x 25GbE SFP28 ports and 12 x QSFP28 ports.

Q: What does power to connector airflow mean?
A: Air flows from the power supply side of the switch towards the connector (port) side. Choose the airflow direction that matches your rack's cooling layout.

Q: What type of deployment is this switch suited to?
A: It is suited to data centre top-of-rack and leaf-spine deployments that need dense 25GbE server connections with QSFP28 uplinks.

Q: Do I need separate transceivers or cables?
A: Yes. SFP28 and QSFP28 ports need compatible optics or direct attach cables, which are ordered separately.

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HPE S2T77A | SN3420M 25GbE Data Centre Switch, 48x SFP28, 12x QSFP28, Cumulus