NVIDIA Mellanox MSN2010-CB2FO Spectrum 25GbE/100GbE Open Ethernet Switch, 18x SFP28 + 4x QSFP28, 1U Half-Width, ONIE: This is a half-width 1U Top-of-Rack Ethernet switch built on the NVIDIA Spectrum (first-generation) ASIC, providing 18 SFP28 ports for 25GbE plus 4 QSFP28 ports for 100GbE, shipped with ONIE only — no preinstalled NOS. It is intended for customers who will install Cumulus Linux, SONiC or another ONIE-compatible NOS themselves. It is not a switch with Cumulus Linux preloaded, nor with NVIDIA Onyx. This is a refurbished unit.
Engineering Context
The MSN2010-CB2FO provides 1.7 Tb/s of switching capacity and a 1.275 Bpps forwarding rate. The 4x QSFP28 100GbE ports also accept 4x25GbE breakout, giving up to 34x 25GbE total when fully broken out. The first-generation Spectrum ASIC supports the full 1/10/25/40/50/100GbE speed range with cut-through forwarding. The half-width 1U chassis allows two switches side by side in a single rack U for dual-ToR designs in space-constrained edge or storage racks. Airflow is P2C (port-to-power, front-to-back).
Deployment & Use Cases
Half-width dual-ToR designs in edge, telco and hyperconverged racks. Storage-node Top-of-Rack switching for 25GbE NVMe-oF or RoCE deployments. Customer-loaded SONiC at edge sites. Bring-your-own Cumulus Linux installs in lab and test fabrics. ZTP-driven NOS provisioning for fleets of identical switches. Small enterprise data center cores with 25GbE servers and 100GbE uplinks.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number (MPN): MSN2010-CB2FO
ASIC: NVIDIA Spectrum (first generation)
Form Factor: 1U Half-Width Rackmount
Ports: 18x SFP28 + 4x QSFP28
Speeds: 1/10/25GbE on SFP28; 40/100GbE on QSFP28
Switching Capacity: 1.7 Tb/s
Forwarding Rate: 1.275 Bpps
Operating System: ONIE only — no preinstalled NOS
Airflow: P2C (port-to-power, front-to-back)
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Constraints
ONIE supports installation of Cumulus Linux, SONiC and other ONIE-compatible NOS images — verify your chosen NOS lists Spectrum / MSN2010 as a supported platform before purchase. Compatible with SFP28 25GbE optics and DACs and with QSFP28 100GbE optics, AOCs and DACs. Compatible with QSFP28-to-4xSFP28 breakout cables for additional 25GbE ports. Pairs with NVIDIA ConnectX-4 Lx, ConnectX-5 and ConnectX-6 Ethernet adapters. P2C airflow only — do not mix with C2P units in the same rack column. This unit ships WITHOUT a preinstalled NOS. For preloaded Cumulus see MSN2010-CB2FC or MSN2010-CB2RC; for Onyx see MSN2010-CB2F.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS power-tests every switch, verifies ONIE boots, validates port operation and confirms airflow direction before shipment. Standard handling is 1–3 business days from confirmed order, with global shipping and expert advice on SONiC, Cumulus and Spectrum deployments. See our product page for purchasing details.