NVIDIA Mellanox MSN2700-CS2F Spectrum-Based 100GbE 1U Open Ethernet Switch, 32x QSFP28, P2C Airflow, Onyx OS: This is a Spectrum-1 based 1U fixed-configuration top-of-rack Ethernet switch with 32 QSFP28 ports supporting 10/25/40/50/100GbE. The 'F' suffix denotes P2C (port-to-power) standard front-to-back airflow direction. With no trailing license-letter, this SKU ships pre-loaded with the NVIDIA Onyx network operating system. This is a refurbished unit.
Engineering Context
The MSN2700 is built on the NVIDIA Spectrum-1 ASIC and delivers 6.4 Tbps of full-duplex non-blocking switching capacity with 4.76 Bpps Layer 2 forwarding rate and approximately 300ns port-to-port latency. All 32 QSFP28 ports support breakout to 4x 25GbE, yielding up to 128 effective 25GbE downlinks per chassis. The switch implements RDMA over Converged Ethernet (RoCE v2) with hardware-based congestion control and supports VXLAN, EVPN, and MLAG. P2C airflow draws cool aisle air from the port side and exhausts at the PSU side — the conventional front-to-back direction matching most data hall hot/cold aisle layouts. Dual hot-swap AC PSUs (1+1 redundant) and N+1 hot-swap fan trays.
Deployment & Use Cases
100GbE spine and leaf in Onyx-managed Ethernet fabrics with conventional cold-aisle/hot-aisle airflow. Storage-fabric switching for NVMe-oF/RoCE clusters and Ceph backends. Cloud and HPC compute pods with 25GbE breakout to ConnectX adapters. Standard ToR deployments where the front (port) side faces the cold aisle. Enterprise environments preferring a turnkey OS over disaggregated installs.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MSN2700-CS2F
ASIC: NVIDIA Spectrum-1
Form Factor: 1U fixed-configuration
Ports: 32x QSFP28 (10/25/40/50/100GbE)
Switching Capacity: 6.4 Tbps full-duplex
Forwarding Rate: 4.76 Bpps
Port-to-Port Latency: ~300ns
Breakout: 4x 25GbE per QSFP28 (up to 128 total 25GbE)
CPU: x86 (Intel)
PSUs: 2x AC, hot-swap, 1+1 redundant
Airflow: P2C (port-to-power, standard front-to-back)
Operating System: NVIDIA Onyx (pre-loaded)
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with NVIDIA ConnectX-4, ConnectX-5, ConnectX-6 Dx and Bluefield DPUs at 10/25/40/100GbE Ethernet, plus standard third-party QSFP28 transceivers and DACs/AOCs. P2C airflow expects ports facing the cold aisle; do not mix with C2P-airflow (reverse) equipment in the same row without isolating airflow paths. Note that NVIDIA Onyx is in long-term maintenance mode — customers planning new long-horizon deployments may prefer Cumulus Linux or SONiC. Not an InfiniBand switch — Ethernet only. Rail kit not included; order separately.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS power-tests and port-validates every switch before shipment, including PSU redundancy and fan health. We provide expert consultation on Spectrum-based fabric design, Onyx configuration, and global shipping with 1–3 day handling. Visit tes-itsolutions.com for the full inventory.