🌟 NVIDIA Mellanox® MSN3420-CB2R | Spectrum-Based 25GbE/100GbE Ethernet Switch | 48× SFP28 + 12× QSFP28 | Onyx OS | Refurbished
NVIDIA PN: 920-9N213-00R7-0X0
The NVIDIA Mellanox® MSN3420-CB2R is a versatile Spectrum-based 1U Open Ethernet switch providing a powerful combination of 48× 25GbE SFP28 ports and 12× 100GbE QSFP28 uplinks.
Designed for high-density data centers, cloud providers, enterprise cores, and AI/HPC environments, this switch delivers wire-speed throughput, consistent low latency, and full enterprise-grade L2/L3 functionality via Mellanox Onyx OS.
📦 Technical Specifications
Model: MSN3420-CB2R
Part Number: 920-9N213-00R7-0X0
Switch Type: Spectrum-Based Managed Ethernet Switch
Port Configuration: 48 × SFP28 (25GbE), 12 × QSFP28 (100GbE)
Ethernet Speeds: 25GbE / 100GbE
Operating System: Mellanox Onyx (pre-installed)
Processor: x86 dual-core control CPU
Airflow Direction: C2P (Connector → Port)
Power Supplies: Dual hot-swappable AC
Form Factor: 1U Rackmount
Depth: Standard
Compliance: RoHS6
⚙️ Key Features
✅ 48× 25GbE + 12× 100GbE ports for flexible aggregation and uplink design
✅ Spectrum architecture enables deterministic latency & zero-packet-loss performance
✅ Onyx OS with enterprise routing, automation, telemetry & security
✅ C2P airflow ideal for modern datacenter cooling patterns
✅ Redundant AC power supplies for high availability
✅ x86 control CPU for advanced management and analytics
✅ Compatible with Mellanox DACs, AOCs, and optics
✅ Professionally refurbished and verified for full port performance
💼 Ideal Use Cases
🔹 Leaf and aggregation layers in modern data centers
🔹 Cloud infrastructure needing mixed 25/100GbE connectivity
🔹 High-performance computing (HPC) & AI/ML clusters
🔹 Storage and NVMe-oF back-end fabrics
🔹 Enterprises transitioning to Open Ethernet switching
📋 Quality Assurance (TES Certified)
Fully tested (thermal, throughput, port diagnostics, PSU redundancy)
Clean, refurbished, minimal cosmetic wear
Preloaded with stable Mellanox Onyx OS
Verified compatibility with NVIDIA/Mellanox cables & optics
High-resolution photos available upon request
💳 Payment & Shipping
💳 PayPal • Credit Card • Wire Transfer
📦 Worldwide shipping (8–13 days) via FedEx/TNT Express
📦 Professional packaging — anti-static & shock-protected
↩ 14-day returns (buyer pays return shipping)
⚠️ Customs/import duties not included
🏆 Why Choose T.E.S IT-SOLUTIONS
We are a global specialist in refurbished Mellanox NVIDIA networking hardware:
🔸 Switches: Spectrum / Spectrum-2 / Spectrum-3 (10G → 400G)
🔸 NICs: ConnectX-3/4/5/6/7 (10G → 400G)
🔸 Cables: QSFP28/56/112, OSFP, SFP28, DACs, AOCs
🔸 Accessories: PSUs, fans, rails
🔸 Expert support for AI/HPC/fabric deployments
Professional testing, global delivery, and trusted customer support.