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NVIDIA Networking (Mellanox) NVIDIA Quantum-2 QM9790. Switching capacity: 51.2 Tb/s bidirectional; Weight: See exact revision. Ask for current pricing and help choosing the right configuration.
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Start an order requestNVIDIA Networking (Mellanox) / PRODUCT DETAILS
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View all specifications →NVIDIA Networking (Mellanox) / ORDER & INSTALLATION DETAILS
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Confirm the intended Ethernet or InfiniBand platform and host qualification.
Match firmware, media, airflow and power where applicable.
Technical overview
Use the full part number when comparing options or asking about system fit.
| Switching capacity | 51.2 Tb/s bidirectional |
|---|---|
| Weight | See exact revision |
| Power | 2 AC PSUs |
| Architecture / generation | Quantum-2 |
| Protocol | InfiniBand |
| Physical ports | 64 NDR ports over 32 OSFP cages |
| Supported rates | 400Gb/s NDR; breakout by qualified interconnect |
| Packet buffer / architecture | Quantum-2 architecture |
| Form factor / dimensions | 1U standard depth |
| Cooling / airflow | P2C |
| Management CPU | Externally managed |
| NOS / management | Externally managed through UFM |
| Manufacturer | NVIDIA Networking (Mellanox) |
| Model | NVIDIA Quantum-2 QM9790 |
| Model / P/N | NVIDIA Networking (Mellanox) NVIDIA Quantum-2 QM9790 |
| Category | Network Switch |
HOW THIS PRODUCT FITS YOUR NETWORK
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NVIDIA Quantum-2 QM9790: check access ports, uplinks and link rates.
This sketch helps describe your request. We will confirm protocols, port counts, coverage and failover when quoting.
YOUR QUOTE REQUEST
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SUPPORT & REPLACEMENT
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We do not have confirmed sales and support dates for this part number.
Send us the full NVIDIA Quantum-2 QM9790 order code, software release and support details before planning long-term use.
Ask us to check the current sales and support statusProducts with similar names or connectors may still be incompatible. Compare the full specifications, installed system and software requirements.
Compare related products These products may be related, but we have not confirmed them as replacements.USING HARDWARE RESPONSIBLY
Consider repairability, remaining support and actual operating demand. Extending service life is useful only when the equipment still meets your security and reliability requirements.
Use measured average input power for the same workload. PSU ratings and processor TDP are different from total system power.
Energy difference = (current W − proposed W) × hours × units ÷ 1,000. Excludes cooling, embodied emissions and purchase costs.CONNECTION DETAILS
Check the protocol and port requirements of the equipment you intend to connect. Ethernet, Fibre Channel, InfiniBand and carrier interfaces are not interchangeable.
Browse the categories above for related equipment, then send us the full configuration so we can check the fit.
PRODUCT DETAILS
Network-system planning
| Decision | Information to provide | Impact on selection |
|---|---|---|
| Topology and role | Peer devices, connection map and required network role | Identifies the protocols and interoperability requirements to check. |
| Physical links | Port type, required link rate, connector and cable reach | Defines the optics or cabling review for both ends of each link. |
| Operating configuration | Airflow, power, software release, licenses and management needs | Resolves model suffixes, deployment fit and entitlement scope. |
Accelerator, adapter or DPU; exact board code and supported host.
Switch or computing system; its own SKU, firmware and configuration.
Product and edition; deployment rights and support where applicable.
Where NVIDIA lists both a current SKU and legacy Mellanox OPN, retain their exact documented mapping. A family name does not confirm a port layout, GPU board version or software entitlement.
| NVIDIA SKU | Legacy Mellanox OPN | Airflow | NOS / management | Power | Lifecycle |
|---|---|---|---|---|---|
| 920-9B210-00FN-0M6 | MQM9790-NS2F | P2C | Externally managed | 2 AC PSUs | MP |
Accelerated networking role
| Specification | NVIDIA Quantum-2 QM9700 | NVIDIA Quantum-2 QM9790 | NVIDIA Quantum QM8700 | NVIDIA Quantum QM8790 |
|---|---|---|---|---|
| Generation | Quantum-2 | Quantum-2 | Quantum | Quantum |
| Protocol | InfiniBand | InfiniBand | InfiniBand | InfiniBand |
| Maximum speed | 400Gb/s NDR | 400Gb/s NDR | 200Gb/s HDR | 200Gb/s HDR |
| Ports | 64 NDR ports over 32 OSFP cages | 64 NDR ports over 32 OSFP cages | 40 QSFP56 HDR ports | 40 QSFP56 HDR ports |
| Capacity | 51.2 Tb/s bidirectional | 51.2 Tb/s bidirectional | 16 Tb/s bidirectional class | 16 Tb/s bidirectional class |
| Form factor | 1U | 1U | 1U | 1U |
| Primary ordering information | 920-9B210-00FN-0M0 | 920-9B210-00FN-0M6 | 920-9B110-00FH-0MD | 920-9B110-00FH-0D0 |
Use as an installed-base reference. It does not confirm cable, NOS or rack compatibility.
64 NDR ports over 32 OSFP cages · 51.2 Tb/s bidirectional
Recalculate the topology and physical layer before migration.
This page shows the NVIDIA hardware platform. The quotation confirms the exact NVIDIA SKU or Mellanox OPN, airflow, power, NOS or authentication, rails and lifecycle. Ordering reference: 920-9B210-00FN-0M6.
NDR externally managed leaf/spine. The value depends on a complete topology, endpoint adapters, congestion policy, qualified interconnect and observability stack.
No. Port cages, breakout, line rate, FEC, cable reach, airflow, power, NOS, firmware and topology must be revalidated.
Exact SKU/OPN, quantity, airflow, AC/DC/busbar input, rails, NOS and licenses, firmware baseline, cables/transceivers, support, condition, warranty and destination.
Model selection & order planning
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