Mellanox SN3420 – 48x 25GbE + 12× 100GbE Managed Switch

Guide price: Price range: £11,556.19 through £16,197.93 Ex. VAT

Product Overview

The MSN3420 series delivers flexible, high-density 25/100GbE switching designed for Top-of-Rack (ToR), leaf or aggregation roles in modern data-centre fabrics. Based on the Spectrum-2 ASIC, switches in this series support mixed-speed connectivity for server access and uplinks, enabling smooth transitions from 25GbE to 100GbE while providing full throughput, low latency and robust telemetry for large-scale deployments.

Ideal deployment/environment: Server-dense racks, hyperconverged clusters and storage-heavy environments requiring high-density 25GbE access with reliable 100GbE uplinks. Suitable for leaf/ToR roles in modern leaf-spine fabrics where low latency, open-Ethernet support and predictable performance under load are required.

Key Features

  • 48 × SFP28 (10/25GbE) + 12 × QSFP28 (40/100GbE)
  • Up to 4.8Tb/s switching capacity and ~3.58Bpps forwarding
  • Cut-through latency ~425ns (Spectrum-2 ASIC)
  • 42MB shared packet buffer
  • ONIE-ready with support for multiple NOS options (e.g., Cumulus Linux, SONiC, Onyx—depending on SKU)
  • 1U chassis with hot-swap redundant PSUs and fans
  • Front-to-back or back-to-front airflow variants

Specification

Additional information

MSN3420 Licensing Options
MSN3420-CB2FIncludes: 100GbE Forwarding License
MSN3420-CB2RIncludes: 100GbE Forwarding License
MSN3420-CB2FCIncludes: 100GbE Open Networking (Cumulus Linux) License
MSN3420-CB2RCIncludes: 100GbE Open Networking (Cumulus Linux) License
MSN3420-CB2FOIncludes: 100GbE Open Networking (ONIE) License
MSN3420-CB2ROIncludes: 100GbE Open Networking (ONIE) License

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Documentation

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