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Home Switching Data Center Switches InfiniBand Switches NVIDIA Mellanox Q3400-RA 800Gb/s XDR InfiniBand Switch

NVIDIA Mellanox Q3400-RA 800Gb/s XDR InfiniBand Switch

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NVIDIA Mellanox Q3400-RA is a 4U Quantum-3 XDR InfiniBand switch built for large-scale AI and HPC fabrics. It provides 144 non-blocking 800Gb/s ports across 72 OSFP cages, with managed operation and air cooling. Its high port density, 115.2Tb/s throughput, and 8 replaceable power supplies make it suited to dense GPU clusters, supercomputing, and enterprise AI infrastructure.

OVERVIEW

  • NVIDIA Mellanox Q3400-RA is a high-density Quantum-3 XDR InfiniBand switch for AI, HPC, GPU, and advanced data-center fabrics. It delivers 144 non-blocking 800Gb/s ports through 72 OSFP cages, providing 115.2Tb/s switching capacity for large-scale infrastructure. Compared with the 2U Q3200-RA, it offers double the XDR port count and higher single-system capacity, while its 4U air-cooled design and eight replaceable PSUs support dense enterprise deployments. This makes it a strong fit for organizations scaling AI clusters, supercomputing environments, and high-performance storage networks. 

USE CASES

  • AI and GPU cluster fabric deployment
  • Large-scale HPC interconnects
  • Supercomputing infrastructure
  • Enterprise AI data centers
  • Distributed machine learning clusters
  • High-performance storage networking
  • Scientific research computing
  • Large-scale compute fabric expansion
  • GPU-intensive analytics environments
  • XDR InfiniBand infrastructure modernization

KEY FEATURES

  • 144 non-blocking 800Gb/s XDR ports
  • 72 physical OSFP cages
  • 115.2Tb/s switching throughput
  • Quantum-3 switch ASIC
  • Managed InfiniBand operation
  • 4U rackmount chassis
  • Air-cooled system design
  • Eight replaceable power supplies
  • Two front management ports
  • Dedicated 400Gb/s InfiniBand management
  • NVOS software support
  • Standard-depth rack installation
  • 19-inch rack compatibility
  • C2P airflow configuration
  • Rail kit included 

TECHNICAL SPECIFICATIONS

  • Brand: NVIDIA Mellanox
  • Part Number: 920-9B36F-00RX-8S0
  • Model: Q3400-RA
  • Product Family: Quantum-3
  • Product Series: Quantum-X800
  • Product Type: XDR InfiniBand Switch
  • InfiniBand Speed: 800Gb/s
  • XDR Ports: 144
  • OSFP Cages: 72
  • Maximum Throughput: 115.2Tb/s
  • Management: Managed
  • Management Port: Separate 400Gb/s InfiniBand in-band management port
  • Form Factor: 4U
  • Cooling: Air-cooled
  • Airflow: C2P
  • Power Supplies: 8 replaceable PSUs
  • Input Voltage: 200–240V AC
  • Rack Mounting: 19-inch
  • Rack Depth: Standard
  • Rail Kit: Included
  • CPU: Intel CFL 4-core i3-8100H, 3GHz
  • Software: NVOS
  • Security: CPU/CPLD/Switch IC based on IRoT
  • Certifications: RoHS, CB, cTUVus, CE, CU
  • EMC: CE, FCC, VCCI, ICES, RCM 

WHY CHOOSE THIS PRODUCT?

  • Q3400-RA is designed for buyers who need very high port density and 800Gb/s XDR connectivity in a single managed switch. Its 144-port capacity, 115.2Tb/s throughput, 72 OSFP cages, and eight replaceable PSUs make it particularly suitable for scaling AI and HPC fabrics while simplifying rack-level infrastructure planning. 

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