NVIDIA Mellanox MSN3700-CS2FC 32-Port 100GbE QSFP28 Spectrum-2 Open Ethernet Switch with Cumulus Linux: This is a 1U managed Layer 2/3 Ethernet switch built on the NVIDIA Spectrum-2 ASIC, equipped with 32 QSFP28 ports for 100Gb/s Ethernet aggregation. The unit ships preloaded with Cumulus Linux for open networking automation. This is a fixed-port fixed-form-factor switch chassis, not a modular line card. This is a brand new unit (NVIDIA P/N: 920-9N201-00F7-0C0).
Engineering Context
The MSN3700-CS2FC uses the Spectrum-2 ASIC with up to 6.4 Tb/s of switching capacity. The 32 QSFP28 ports each operate natively at 100GbE, with optional breakout to 2x50GbE or 4x25GbE per port using QSFP28 breakout cables. Airflow is P2C (Power-to-Connector), suitable for cold-aisle-front data center layouts. Dual hot-swappable AC power supplies provide N+N redundancy. Cumulus Linux exposes a standard Linux toolchain for configuration and automation, including NCLU, FRR routing, and Ansible/NAPALM integration.
Deployment & Use Cases
Spine and leaf positions in 100GbE Ethernet fabrics. AI and HPC cluster east-west networks. Cloud and hyperscaler aggregation layers running open-network automation pipelines. Enterprise core upgrades from 10/40GbE to 100GbE. Storage backbones for NVMe-over-Fabrics and distributed file systems.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MSN3700-CS2FC (NVIDIA P/N 920-9N201-00F7-0C0)
ASIC: NVIDIA Spectrum-2
Port Configuration: 32 x QSFP28 (100GbE)
Switching Capacity: Up to 6.4 Tb/s
Form Factor: 1U Rackmount
Operating System: Cumulus Linux
Airflow: P2C (Power-to-Connector)
Power Supplies: Dual AC, hot-swappable
Management: Out-of-band Ethernet, USB, RJ45 console
Condition: New
Compatibility & Hard Constraints
Each QSFP28 port supports 100GbE natively or breakout to 4x25GbE / 2x50GbE with appropriate breakout cables. Compatible with standard NVIDIA Mellanox QSFP28 transceivers, DACs, and AOCs. This is an Ethernet-only switch chassis (not VPI / not InfiniBand). The CS2FC SKU is preloaded with Cumulus Linux; it is not the same as the CS2F (Onyx) or CS2R (Onyx, C2P) variants. P2C airflow direction must match the rack hot/cold aisle layout. Cumulus Linux licensing terms apply.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS supplies new and refurbished NVIDIA Mellanox networking hardware with full functional verification, professional packaging, and a 1-3 day handling window. Visit tes-itsolutions.com for our full Spectrum and Quantum switch lineup, ConnectX adapters, and DAC/AOC cabling.