NVIDIA Quantum-3 Q3400/Q3401 4U XDR InfiniBand switch family with 144 XDR ports over 72 OSFP cages for dense 800Gb/s AI and HPC fabrics.
Ground, Overnight
Fast Shipping
In Stock
100k+ SKUs
Sales and Support
8/5 Support
New / Refurbished
Certified
NVIDIA Quantum-3 Q3400 / Q3401 XDR 800Gb/s InfiniBand Switch | 920-9B36F-00RX-8S0
⭐ Top Rated Verified Buyers
We are trusted for quality, reliability and fast shipping 💯
0
People watching this product now!
Description
NVIDIA Q3400 / Q3401 XDR InfiniBand Switch |920-9B36F-00RX-8S0
NVIDIA Quantum-3 Q3400 / Q3401 is a 4U, 144-port XDR 800Gb/s InfiniBand switch family for large AI and HPC fabrics. The Q3400-RA uses conventional power supplies, while the closely related Q3401-RD replaces them with a 48VDC busbar design for rack environments built around direct-current power distribution.
Availability / RFQ: Pricing, allocation, quantity, configuration, support, and lead time can vary with current channel conditions. Contact Catalyst Data Solutions to discuss current status, compatibility, configuration requirements, and sourcing options.
Compliance notice: Sales and shipment may be subject to applicable U.S. export controls, destination screening, end-user/end-use requirements, and OEM/channel policies. Availability and eligibility must be verified before quotation or shipment.
Technical Specifications
| Primary SKU | 920-9B36F-00RX-8S0 |
|---|---|
| Product Type | XDR InfiniBand Switch |
| Architecture | NVIDIA Quantum-3 |
| Form Factor | 4U |
| Ports | 144 XDR ports over 72 OSFP cages |
| Fabric Speed | XDR 800Gb/s InfiniBand |
| Management | Managed; NVOS for InfiniBand |
| Primary Power Design | Q3400-RA: 8 power supplies |
| Availability Status | Available / RFQ |
Available Variants
- Q3400-RA — 920-9B36F-00RX-8S0: 4U managed switch with 144 XDR ports over 72 OSFP cages and eight power supplies.
- Q3401-RD — 920-9B36P-00RX-8S0: Closely related 144-port system using a 48VDC busbar instead of conventional power supplies.
Deployment and Compatibility Considerations
- Choose Q3400-RA versus Q3401-RD based on rack power architecture.
- Validate XDR adapters, OSFP optics/AOCs, cable reach, and port mapping.
- Plan InfiniBand routing, congestion control, topology, and management for the intended GPU/HPC scale.
- Confirm airflow, rail kit, rack depth, and service clearances.
Common Use Cases
- Large AI training clusters
- High-radix XDR InfiniBand fabrics
- HPC and AI-for-science systems
- DGX/HGX scale-out networks
Frequently Paired Infrastructure
- ConnectX-9 XDR SuperNICs
- DGX Rubin and HGX Rubin systems
- OSFP XDR optics and LinkX cables
- Parallel AI/HPC storage
Official NVIDIA Documentation
NVIDIA Q3400/Q3401 Switch Manual
Frequently Asked Questions
What is the main difference between Q3400-RA and Q3401-RD?
They share the 144-port XDR switch architecture, but Q3400-RA uses conventional power supplies while Q3401-RD is designed around a 48VDC busbar.
How many XDR ports are available?
144 XDR ports over 72 OSFP cages.
Additional information
| product type | InfiniBand Switch |
|---|---|
| Architecture / Series | NVIDIA Quantum-3 |
| Port / Speed | 144 XDR Ports / 800Gb/s XDR |
| Form Factor | 4U |
| Availability Status | Available / RFQ |
About brand
NVIDIA is the leader in GPU computing and AI infrastructure for high-performance workloads.
