NVIDIA Quantum MQM8790-HS2R 40-Port HDR InfiniBand Switch
Brand: NVIDIA | Category: Network Switches
SKU: NVIDIAQUANTUMMQM8790HS2RHDRINFINIBA | Part #: MQM8790-HS2R | MPN: MQM8790-HS2R
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About the NVIDIA Quantum MQM8790-HS2R 40-Port HDR InfiniBand Switch
The NVIDIA Quantum MQM8790-HS2R is a 40-port HDR InfiniBand switch delivering 200Gb/s per port with an aggregate switching capacity of 16Tb/s, positioning it as a high-performance fabric backbone for mission-critical data center environments. Built on NVIDIA's Quantum series architecture, this switch features non-blocking cut-through switching with sub-100 nanosecond port-to-port latency, ensuring minimal delay in ultra-low-latency applications. The MQM8790-HS2R operates with NVIDIA Onyx network operating system and supports advanced in-network computing through NVIDIA SHARP (Scalable Hierarchical Aggregation and Reduction Protocol), enabling efficient collective operations at line rate. Congestion management is handled through Advanced Congestion Control with Burst Absorbing Technology, while adaptive routing support enables dynamic traffic optimization across fat-tree and dragonfly topologies. The switch is housed in a compact 1U form factor with half-rack depth, featuring hot-swappable redundant power supplies and cooling fan modules for continuous availability.
Network architects and AI infrastructure teams deploying large-scale HPC clusters, machine learning workloads, and storage-intensive environments select the MQM8790-HS2R to eliminate bandwidth bottlenecks and reduce application completion times. Data center operations teams benefit from unified fabric management through compatibility with NVIDIA UFM (Unified Fabric Manager), simplifying monitoring and troubleshooting across the entire switched fabric. Organizations requiring predictable, low-latency interconnects with high aggregate throughput rely on this switch to support demanding parallel computing and synchronized data transfer workloads.
For enterprise customers evaluating this solution, Omnixon Global provides comprehensive support for the NVIDIA Quantum MQM8790-HS2R, including technical specification validation, integration planning, and supply chain coordination. Contact our team to submit a detailed request for quotation.
Technical Specifications
| Brand | NVIDIA |
| Category | Network Switches |
| SKU | NVIDIAQUANTUMMQM8790HS2RHDRINFINIBA |
| Part Number | MQM8790-HS2R |
| Condition | New |
| Capacity | 200GB |
| Form Factor | 1U |
| Manufacturer Part Number | MQM8790-HS2R |
| Switch Series | Quantum |
| InfiniBand Standard | HDR (High Data Rate) |
| Number of Ports | 40 |
| Port Speed | 200Gb/s HDR InfiniBand per port |
| Aggregate Switching Capacity | 16Tb/s |
| Port-to-Port Latency | Sub-100 nanoseconds |
| Switch Architecture | Non-blocking cut-through |
| In-Network Computing | NVIDIA SHARP (Scalable Hierarchical Aggregation and Reduction Protocol) |
| Congestion Management | Advanced Congestion Control (ACC) with Burst Absorbing Technology (BAT) |
| Routing | Adaptive routing supported |
| Form Factor | 1U, half-rack depth |
| Power Supply | Hot-swappable redundant power supplies |
| Cooling | Hot-swappable redundant fan modules |
| Management | Compatible with NVIDIA UFM (Unified Fabric Manager) |
| Supported Topologies | Fat-tree, dragonfly |
| Cable Interface | QSFP56 |
| Operating System | NVIDIA Onyx (NOS) |
Frequently Asked Questions about NVIDIA Quantum MQM8790-HS2R 40-Port HDR InfiniBand Switch
What does the NVIDIA Quantum MQM8790-HS2R 40-Port HDR InfiniBand Switch do?
The NVIDIA Quantum MQM8790-HS2R 40-Port HDR InfiniBand Switch is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
What are the headline specs of the NVIDIA Quantum MQM8790-HS2R 40-Port HDR InfiniBand Switch?
Key specifications for the NVIDIA Quantum MQM8790-HS2R 40-Port HDR InfiniBand Switch: new condition; series Quantum; ports 40x HDR 200Gb/s QSFP56; switching capacity Up to 16Tb/s; form factor 1U; airflow C2P / rear-to-front airflow; management Managed data center fabric switch. Manufacturer part number MQM8790-HS2R. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the NVIDIA Quantum MQM8790-HS2R 40-Port HDR InfiniBand Switch compatible with my infrastructure?
The NVIDIA Quantum MQM8790-HS2R 40-Port HDR InfiniBand Switch interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.