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Management Interfaces, PSUs and Fans
The table below lists the various management interfaces and available replacement parts per system model.
| System Model | USB | MGT | I²C | Console | Replaceabl e PSU | Replaceabl e Fan |
| QM9700 | Front (USB3.0 type A) | Front (1 port) | NA | Front | Yes, 2 | Yes, 7 |
| QM9790 | NA | NA | Front (USB3.0 type A) | NA | Yes, 2 | Yes, 7 |
The NVIDIA Quantum-2-based QM9700 and QM9790 switch systems deliver an unprecedented 64 ports of NDR 400Gb/s InfiniBand per port in a 1U standard chassis design. A single switch carries an aggregated bidirectional throughput of 51.2 terabits per second (Tb/s), with a landmark of more than 66.5 billion packets per second (BPPS) capacity. Supporting the latest NDR technology, NVIDIA Quantum-2 brings a high-speed, extremely low-latency and scalable solution that incorporates state-of-the-art technologies such as Remote Direct Memory Access (RDMA), adaptive routing, and NVIDIA Scalable Hierarchical Aggregation and Reduction Protocol (SHARP)™.Unlike any other networking solution, NVIDIA InfiniBand provides self-healing network capabilities, as well as quality of service (QoS), enhanced virtual lane (VL) mapping, and congestion control to provide the highest overall application throughput. As an ideal rack-mounted InfiniBand solution, the QM9700 and QM9790 NDR InfiniBand fixed-configuration switches allow maximum flexibility, as they enable a variety of topologies, including Fat Tree, SlimFly, DragonFly+, multi-dimensional Torus, and more. They’re also backwards compatible to previous generations and include expansive software ecosystem support.