NVIDIA Quantum-2 QM9790 Series 400G InfiniBand Switch
1. MQM9790-NS2R Product Overview
The NVIDIA Quantum-2 QM9790 Series is a groundbreaking 400G InfiniBand switch designed for next-generation high-performance computing (HPC) and artificial intelligence (AI) data centers. With 64 non-blocking ports delivering 400Gb/s each, it offers an aggregate bidirectional throughput of 51.2 Tb/s and over 65.5 billion packets per second. This switch series is engineered to handle extreme-scale workloads, providing unparalleled speed, low latency, and advanced in-network computing capabilities.
2. MQM9790-NS2R Key Features
- 64 ports of 400Gb/s InfiniBand connectivity
- 51.2 Tb/s aggregate bidirectional throughput
- Support for NVIDIA SHARPy3 in-network computing
- Adaptive routing and congestion control
- Port splitting for 128x 200Gb/s operation
- Hot-swappable power and cooling units
- On-board or external management options
3. MQM9790-NS2R Core Technologies
The QM9790 leverages NVIDIA's third-generation SHARP (Scalable Hierarchical Aggregation and Reduction Protocol) technology, SHARPy3, which enhances AI acceleration by 32x compared to previous generations. It also supports Remote Direct Memory Access (RDMA), adaptive routing, and advanced Quality of Service (QoS) features to ensure efficient data handling and minimal latency.
4. MQM9790-NS2R Working Principle
The switch operates by utilizing a non-blocking architecture that ensures all ports can communicate simultaneously at full bandwidth. It employs adaptive routing to dynamically manage data paths, reducing congestion and optimizing performance. SHARPy3 performs data aggregation and reduction within the network, offloading computation from servers and significantly reducing data movement.
5. MQM9790-NS2R Applications
Ideal for:
- AI and machine learning training clusters
- High-performance computing (HPC) systems
- Large-scale data analytics
- Scientific research and simulation environments
- Cloud infrastructure and hyperscale data centers
6. Specifications
| Attribute | Value |
| Port Speed | 400G per port |
| Total Ports | 64 |
| Throughput | 51.2 Tb/s |
| Connectors | 32x OSFP |
| Power Supply | 1+1 redundant, 200-240V AC |
| Cooling | Front-to-back or back-to-front |
| Dimensions | 1.7" H x 17.0" W x 26.0" D |
| Weight | 14.5 kg |
Ordering Information
| Model Number | Description |
| MQM9790-NS2F | 64x 400G ports, with subnet management, P2C airflow |
| MQM9790-NS2R | 64x 400G ports, with subnet management, C2P airflow |
| MQM9790-NS2F | 64x 400G ports, unmanaged, P2C airflow |
| MQM9790-NS2R | 64x 400G ports, unmanaged, C2P airflow |
7. Advantages
- World's highest density 400G InfiniBand switch
- 32x improvement in AI acceleration with SHARPy3
- Backward compatibility with previous InfiniBand generations
- Support for multiple network topologies (Fat Tree, DragonFly+, etc.)
- Enhanced reliability with self-healing network capabilities
8. Service & Support
We provide comprehensive support including 24/7 technical consultation, warranty services, and rapid delivery. Our team ensures seamless integration and ongoing maintenance for your data center infrastructure.
9. FAQ
Q: What is the maximum number of nodes supported by the onboard subnet manager?
A: The onboard subnet manager supports up to 2000 nodes.
Q: Does the QM9790 support backward compatibility with older InfiniBand generations?
A: Yes, it is fully backward compatible with previous InfiniBand generations.
Q: What cooling options are available?
A: Both front-to-back and back-to-front cooling configurations are supported.
10. Precautions
- Operating temperature: 0°C to 35°C (forward airflow), 0°C to 40°C (reverse airflow)
- Non-operating temperature: -40°C to 70°C
- Humidity: 10% to 85% (operating), 10% to 90% (non-operating), non-condensing
- Compliance: CE, FCC, VCCI, RoHS, ENERGY STAR
- Ensure proper airflow and power redundancy for optimal operation
11. Company Introduction
With over 10 years of industry experience, we operate a large factory supported by a strong technical team. We have accumulated a vast customer base and extensive expertise, enabling us to provide high-quality products at competitive prices. Our portfolio includes leading brands such as Mellanox, Ruckus, Aruba, and Extreme. We offer a wide range of products including network switches, network cards, wireless access points, wireless controllers, and cables. With over 10 million units in inventory, we ensure reliable supply and prompt delivery. Our dedicated sales and technical support teams are available 24/7 to assist you, earning us a high reputation in the global market.
