Nvidia Quantum-3 144-Port XDR InfiniBand Switch - 920-9B36F-00RX-8S0 | 400Gb/s

The NVIDIA Quantum-3 920-9B36F-00RX-8S0 is a high-density InfiniBand switch built for the largest AI and HPC clusters, where east-west bandwidth between compute nodes can make or break training and simulation performance. Delivering 400Gb/s XDR speeds across 144 ports housed in 72 OSFP cages, it's designed to sit at the core of next-generation GPU compute fabrics rather than a conventional enterprise data center network.

Key Features

• 144 ports of XDR InfiniBand connectivity at 400Gb/s per port
• 72 OSFP cages for high-density cabling in a single chassis
• 8x power supply units for high-availability operation
• 4U rack-mountable chassis built for large-scale compute fabrics

Product Specifications

• Model: Quantum-3 (920-9B36F-00RX-8S0)
• Manufacturer: NVIDIA
• Port Count: 144 XDR InfiniBand ports
• Port Speed: 400Gb/s
• Physical Connectors: 72 OSFP cages
• Power Supplies: 8x PSUs
• Form Factor: 4U rack-mountable
• Switch Class: InfiniBand fabric switch

Use Cases

• Core fabric switching for large-scale AI training clusters
• High-performance computing (HPC) interconnects requiring minimal latency
• GPU-to-GPU compute fabrics needing massive east-west bandwidth
• Data centers scaling InfiniBand fabric beyond standard Ethernet limits

Compatibility

Built for NVIDIA Quantum-3 InfiniBand fabric deployments using OSFP-based XDR transceivers and cabling.

Frequently Asked Questions

What kind of network is this switch designed for?

It's built for InfiniBand fabrics used in AI training and HPC clusters, not standard Ethernet data center networks.

How many physical connectors does the switch use?

72 OSFP cages support the switch's 144 XDR ports.

For organizations building AI infrastructure at scale, the Quantum-3 delivers the port density and per-port bandwidth needed to keep GPU clusters fed with data rather than waiting on the network.