NVIDIA Quantum Q3400-RA InfiniBand Switch, 72×OSFP 800G XDR, 115.2Tbps, 4U

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Model	Q3400-RA (P/N: 920-9B36F-00RX-8S0)
Platform	NVIDIA Quantum-3 (Quantum-X800)
Type	Managed InfiniBand Switch
Ports	72×OSFP (144×800Gb/s XDR non-blocking)
Switching Capacity	115.2 Tbps
Speed	800G XDR / 400G NDR / 200G HDR / 100G EDR
Management CPU	Intel i3-8100H 4-core 3GHz
System	NVOS
Brand Name	NVIDIA
Model Number	Quantum Q3400-RA
Certification	CE
Place of Origin	CHINA

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Product Specification


Model	Q3400-RA (P/N: 920-9B36F-00RX-8S0)	Platform	NVIDIA Quantum-3 (Quantum-X800)
Type	Managed InfiniBand Switch	Ports	72×OSFP (144×800Gb/s XDR non-blocking)
Switching Capacity	115.2 Tbps	Speed	800G XDR / 400G NDR / 200G HDR / 100G EDR
Management CPU	Intel i3-8100H 4-core 3GHz	System	NVOS
Brand Name	NVIDIA	Model Number	Quantum Q3400-RA
Certification	CE	Place of Origin	CHINA
High Light	NVIDIA Quantum Q3400 InfiniBand switch ，800G XDR OSFP network switch ，4U managed air-cooled HPC switch

Q3400-RA (P/N: 920-9B36F-00RX-8S0) Detailed Product Overview + Full Specification Table

Product Overview (Professional & Detailed Version)

The NVIDIA Quantum Q3400-RA is an enterprise‑class managed InfiniBand switch powered by the cutting‑edge Quantum‑3 (Quantum‑X800) ASIC, purpose‑built for the most demanding AI training clusters, high‑performance computing (HPC), large‑scale data centers, and next‑generation cloud infrastructures. It adopts industry‑leading 200Gb/s per lane SerDes technology to deliver breakthrough 800Gb/s XDR InfiniBand bandwidth, with a non‑blocking switching capacity of up to 115.2 Tbps to fully unlock the performance of GPU clusters and high‑speed computing nodes.

This switch provides 72 high‑speed OSFP ports, supporting 144 logical 800G XDR ports while maintaining full backward compatibility with 400G NDR, 200G HDR, 100G EDR, 56G FDR, and 40G QDR InfiniBand rates, protecting existing network investments. Integrated with SHARP v4 in‑network computing acceleration, it offloads collective communication operations to the switch fabric, drastically reducing CPU overhead, lowering end‑to‑end latency, and significantly accelerating AI model training, large‑scale parallel computing, and real‑time data processing workloads.

Built with a standard 4U rack‑mount, air‑cooled chassis and C2P (Connector‑to‑Power) airflow, the Q3400-RA supports 8 hot‑swappable AC power supplies with full N+N redundancy to ensure uninterrupted operation in mission‑critical environments. It offers comprehensive management including CLI, Web UI, SNMP, gNMI, Redfish, and NVIDIA UFM for centralized orchestration, real‑time telemetry, intelligent fault detection, and automated O&M.

With enterprise‑grade security (secure boot, IRoT, hardware‑based encryption), adaptive routing, advanced congestion control, and high‑radix scalable topology, the Q3400-RA supports two‑level fat‑tree architecture connecting up to 10,368 NICs to satisfy ultra‑large‑scale cluster expansion. It is the ideal core switching solution for AI supercomputing centers, large language model (LLM) training, scientific research, financial computing, and cloud data centers requiring extreme bandwidth, ultra‑low latency, and carrier‑grade reliability.

Full Specifications Table

表格

Parameter	Details
Model	NVIDIA Quantum Q3400-RA
Part Number	920-9B36F-00RX-8S0
Switch Chip	NVIDIA Quantum-3 (Quantum-X800)
Port Configuration	72 × OSFP (supports 144 × 800Gb/s logical ports)
Transmission Speed	800G XDR / 400G NDR / 200G HDR / 100G EDR / 56G FDR / 40G QDR
Switching Capacity	115.2 Tbps non-blocking
Management CPU	Intel i3-8100H 4-core 3.0GHz
System OS	NVIDIA NVOS
Management Interfaces	1 × 1GbE RJ45 management port, 1 × USB, 1 × RS232 serial
Management Protocols	CLI, Web, SNMP v2/v3, gNMI, Redfish, REST API, UFM, NetQ
Key Technologies	SHARP v4, Adaptive Routing, Adaptive Congestion Control, QoS, Subnet Management (SM)
Security	Secure Boot, IRoT, CPLD/Switch IC security, access authentication, encryption
Form Factor	4U, 19-inch rack-mountable
Dimensions	177.8mm (H) × 438mm (W) × 850mm (D)
Cooling	Air-cooled, C2P (front-to-back) airflow, redundant hot-swappable fans
Power Supply	8 × hot-swappable AC PSU (200–240V AC), N+N redundancy, power cords not included
Operating Temperature	0°C ~ 40°C
Storage Temperature	-20°C ~ 70°C
Humidity	10% ~ 90% non-condensing
Application Scenarios	AI training clusters, HPC, data center spine/leaf, GPU interconnection, supercomputing

Company Details

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Distributor/Wholesaler,Agent,Seller 
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The Formation of Lonrise My Company was founded in 2007 as Cisco distributor and integrator domestically. After 4 years' steadfast development, it spotted the business abroad. Thus Lonrise stepped on the road as a global CISCO supplier which has owned a good reputation within ... The Formation of Lonrise My Company was founded in 2007 as Cisco distributor and integrator domestically. After 4 years' steadfast development, it spotted the business abroad. Thus Lonrise stepped on the road as a global CISCO supplier which has owned a good reputation within ...

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