Switch Series & Supported Models
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NVIDIA/Mellanox MQM9790-NS2R Mellanox Quantum™-2 NDR InfiniBand Switch, 64-Ports NDR, 32 OSFP Ports, Unmanaged, P2C Airflow
P/N: MQM9790-NS2R SKU: 10104
US$35,999.00
Switch Types:
- MQM9700-NS2F 64x NDR,32x OSFP,P2C,Managed
- MQM9700-NS2R 64x NDR,32x OSFP,C2P,Managed
- MQM9790-NS2F 64x NDR,32x OSFP,P2C,Unmanaged
- MQM9790-NS2R 64x NDR,32x OSFP,C2P,Unmanaged
Quantity:
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30-day return and refund
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3-year warranty
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Available for delivery within 2 days
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Free shipping for orders over
Products Highlight
- 64×400G NDR Ports in 1U
- 51.2Tb/s Non-Blocking Switching Capacity
- Break Out to 128×200G NDR Links
- External UFM Management for Fabric Operations
- RDMA, SHARPv3, and Adaptive Routing
- Reverse C2P Airflow with Hot-Swap Redundancy
Specifications
| Part Number | MQM9790-NS2R | Switch ASIC | NVIDIA Quantum-2 |
|---|---|---|---|
| Form Factor | 1U | Switching Capacity | 25.6Tb/s |
| Ports | 32 × OSFP | Port Speed | 2 × 400Gb/s NDR |
| Management | Unmanaged | Airflow | Connector-to-Power (C2P) |
| Cooling Mechanism | Air Cooled | Input Voltage | 200-240VAC, 10A, 50/60Hz per PSU |
| Dimensions (H × W × D) | 43.6 × 438 × 660 mm | Warranty | 1-Year Limited Warranty |
Applications
Certification
Features
Compare Items
| NVIDIA/Mellanox MQM9790-NS2R Mellanox Quantum™-2 NDR InfiniBand Switch, 64-Ports NDR, 32 OSFP Ports, Unmanaged, P2C Airflow |  NVIDIA/Mellanox MQM9700-NS2F Mellanox Quantum™-2 NDR InfiniBand Switch, 64-Ports NDR, 32 OSFP Ports, Managed, Power-to-connector (P2C) Airflow (forward) |  NVIDIA/Mellanox MQM9700-NS2R Mellanox Quantum™-2 NDR InfiniBand Switch, 64-Ports NDR, 32 OSFP Ports, Managed, Power-to-connector (C2P) Airflow (forward) |  NVIDIA/Mellanox MQM9790-NS2F Mellanox Quantum™-2 NDR InfiniBand Switch, 64-Ports NDR, 32 OSFP Ports, Unmanaged, P2C Airflow | |
|---|---|---|---|---|
| Switch ASIC | NVIDIA Quantum-2 | NVIDIA Quantum-2 | NVIDIA Quantum-2 | NVIDIA Quantum-2 |
| Form Factor | 1U | 1U | 1U | 1U |
| Switching Capacity | 25.6Tb/s | 25.6Tb/s | 25.6Tb/s | 25.6Tb/s |
| Ports | 32 × OSFP | 32 × OSFP | 32 × OSFP | 32 × OSFP |
| Port Speed | 2 × 400Gb/s NDR | 2 × 400Gb/s NDR | 2 × 400Gb/s NDR | 2 × 400Gb/s NDR |
| Management | Unmanaged | Managed | Managed | Unmanaged |
| Airflow | Connector-to-Power (C2P) | Power-to-Connector (P2C) | Connector-to-Power (C2P) | Power-to-Connector (P2C) |
Resources
FAQ
Ask a QuestionFind answers to common questions about our products.
Why does the switch have 32 OSFP cages but provide 64 NDR 400G ports?
Each OSFP cage uses a Twin-Port design and carries two independent 400G InfiniBand links. Therefore, 32 physical OSFP cages provide 64 logical NDR 400G ports. Fabric capacity planning should be based on logical ports, not only front-panel cage count.
Can MQM9790 run 400G NDR and 200G NDR200 links at the same time?
Yes. The switch can support mixed InfiniBand link speeds within the same system. A 400G port can be deployed as 2×200G through an appropriate breakout connection, so each OSFP interface should be planned according to the intended connection mode, destination interface, and bandwidth requirement.
How can MQM9790 connect to an existing HDR 200G InfiniBand fabric?
The NDR ports can operate at 200G when used with the correct connectivity solution. Use compatible OSFP-to-QSFP56 DACs, AOCs, or optical interconnects, and validate port mode, adapter model, firmware level, cable specification, and QSFP56 capability on the existing HDR equipment.
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