MQM8790-HS2F – 40-Port 200Gb/s HDR InfiniBand Managed Switch
The NVIDIA MQM8790-HS2F is a 1U managed InfiniBand switch built around 40 HDR QSFP56 ports running at 200Gb/s, aimed at HPC clusters, AI training backends, and high-density storage fabrics. It suits system integrators and data center buyers who need fat-tree or torus topologies with non-blocking throughput of up to 16 Tb/s. Verify your hosts and adapters are HDR-capable and plan airflow direction against your rack layout before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model | MQM8790-HS2F |
| Ports | 40 × HDR (200Gb/s) QSFP56 InfiniBand |
| Total throughput | Up to 16 Tb/s switching capacity |
| Forwarding rate | Over 8.3 billion packets per second (Bpps) |
| Latency | Sub-microsecond port-to-port |
| Form factor | 1U rackmount |
| Cooling | Front-to-back airflow (confirm direction matches rack containment) |
| Redundancy | Hot-swappable fans and dual redundant power supplies |
| Management | Mellanox Unified Fabric Manager (UFM), CLI, SNMP, REST API |
| Power efficiency | Energy-optimized design for high-density deployments |
Good to know
- All 40 ports are HDR QSFP56; backward operation with EDR/100Gb/s and lower InfiniBand link speeds is possible, but actual link rates depend on the connected host channel adapters and cables — confirm endpoint capability before committing to cable types.
- Within NVIDIA’s Quantum HDR switch family, the MQM8790 is the 40-port configuration; larger 80-port Quantum-2 (NDR) and smaller unmanaged units exist for different tiers of fabric scale, so match port count to your topology rather than oversizing.
- Confirm PSU plug type, rack power budget, and front-to-back airflow compatibility with your hot/cold aisle design at time of order; request accessories and mounting kit availability from your account manager.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
The NVIDIA MQM8790-HS2F is a 1U managed InfiniBand switch built around 40 HDR QSFP56 ports running at 200Gb/s, aimed at HPC clusters, AI training backends, and high-density storage fabrics. It suits system integrators and data center buyers who need fat-tree or torus topologies with non-blocking throughput of up to 16 Tb/s. Verify your hosts and adapters are HDR-capable and plan airflow direction against your rack layout before ordering.
Key specifications (table)
| Parameter | Specification |
|---|---|
| Model | MQM8790-HS2F |
| Ports | 40 × HDR (200Gb/s) QSFP56 InfiniBand |
| Total throughput | Up to 16 Tb/s switching capacity |
| Forwarding rate | Over 8.3 billion packets per second (Bpps) |
| Latency | Sub-microsecond port-to-port |
| Form factor | 1U rackmount |
| Cooling | Front-to-back airflow (confirm direction matches rack containment) |
| Redundancy | Hot-swappable fans and dual redundant power supplies |
| Management | Mellanox Unified Fabric Manager (UFM), CLI, SNMP, REST API |
| Power efficiency | Energy-optimized design for high-density deployments |
Good to know
- All 40 ports are HDR QSFP56; backward operation with EDR/100Gb/s and lower InfiniBand link speeds is possible, but actual link rates depend on the connected host channel adapters and cables — confirm endpoint capability before committing to cable types.
- Within NVIDIA’s Quantum HDR switch family, the MQM8790 is the 40-port configuration; larger 80-port Quantum-2 (NDR) and smaller unmanaged units exist for different tiers of fabric scale, so match port count to your topology rather than oversizing.
- Confirm PSU plug type, rack power budget, and front-to-back airflow compatibility with your hot/cold aisle design at time of order; request accessories and mounting kit availability from your account manager.
For tray and reel pricing, current stock by part number and date code, and volume discounts on bulk orders, request a bulk quotation.
