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Hong Kong Starsurge Group Co., Limited
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400GB/S Ib Mellanox Network Switch Per Port The Ultimate Choice for Your Server Stocked MQM9790-NS2R(920-9B210-00RN-0D0) Managed Switches

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Hong Kong Starsurge Group Co., Limited

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400GB/S Ib Mellanox Network Switch Per Port The Ultimate Choice for Your Server Stocked MQM9790-NS2R(920-9B210-00RN-0D0) Managed Switches

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Transmission Rate 10/100/1000Mbps
Technology Infiniband
Delivery Time Based on inventory
Origin India / Israel / China
Supply Ability Supply by project/batch
Model NO. MQM9790-NS2R
Specification Without management
Function Lacp, Stackable, Vlan Support
Trademark Mellanox
Model Number MQM9790-NS2R(920-9B210-00RN-0D0)
Minimum Order Quantity 1pcs
Packaging Details outer box
Brand Name Mellanox
Price Negotiate
Payment Terms T/T
Ports 48
Detailed Product Description
NVIDIA Quantum-2 MQM9790-NS2R 400Gb/s InfiniBand Switch
64-port 400Gb/s NDR unmanaged switch with C2P airflow, designed for hyperscale AI and HPC clusters requiring external fabric management via NVIDIA UFM.
Product Overview
The NVIDIA Quantum-2 MQM9790-NS2R is a fixed-configuration 1U InfiniBand switch from the QM9700 series, offering 64 non-blocking ports at 400Gb/s (NDR). With an aggregate bidirectional throughput of 51.2 terabits per second and over 66.5 billion packets per second, it is built for extreme-scale workloads.
The NS2R variant features connector-to-power (C2P) reverse airflow, ideal for data center rows where cold air is drawn from the opposite side. As an unmanaged model, it relies on external controllers such as NVIDIA Unified Fabric Manager (UFM) for advanced orchestration, monitoring, and proactive troubleshooting.
Key Features
  • 64 ports of 400Gb/s NDR - Full wire-speed non-blocking switching in 1U
  • 51.2 Tb/s aggregate throughput + 66.5 BPPS capacity
  • NVIDIA SHARPv3 in-network computing acceleration
  • C2P reverse airflow (NS2R) - Connector-side intake, power-side exhaust
  • Unmanaged + UFM ready for centralized provisioning and telemetry
  • 1+1 redundant hot-swappable PSU - 80 PLUS Gold+ certified
  • RDMA, adaptive routing, and congestion control
  • Backward compatible with HDR 200G, EDR 100G, and FDR
Technology - SHARPv3 & In-Network Computing
The MQM9790-NS2R integrates the third generation of NVIDIA Scalable Hierarchical Aggregation and Reduction Protocol (SHARPv3). By performing data reduction operations inside the switch fabric, it drastically reduces the volume of data that must traverse the network between endpoints, directly accelerating AI frameworks and scientific simulations.
Typical Deployments
  • Large-Scale AI Clusters - GPU-accelerated data centers requiring centralized fabric management
  • Hyperscale HPC Environments - SlimFly, DragonFly+, and Fat Tree topologies
  • Multi-Tenant Cloud Data Centers - Unmanaged switches controlled via UFM for multi-cluster automation
  • Research & National Labs - Advanced telemetry and predictive maintenance requirements
Specifications
ParameterMQM9790-NS2R Details
Port Speed & Count64 ports of 400Gb/s NDR via 32 OSFP connectors
Aggregate Throughput51.2 Tb/s bidirectional
Packet Processing Capacity>66.5 billion packets per second (BPPS)
Form Factor1U rackmount; 43.6mm (H) x 438mm (W) x 660.4mm (D)
Airflow DirectionConnector-to-Power (C2P) - reverse airflow (rear-to-front)
Power Supply1+1 redundant, hot-swappable; 200-240V AC, 80 PLUS Gold
Operating Temperature0°C to 40°C
Warranty1 year (extended options available)
Selection Guide - QM9700 Series
Orderable Part NumberDescriptionAirflowManagement
MQM9700-NS2F64 ports 400Gb/s, managedPower-to-connectorOn-board subnet manager
MQM9700-NS2R64 ports 400Gb/s, managedConnector-to-powerOn-board subnet manager
MQM9790-NS2F64 ports 400Gb/s, unmanagedPower-to-connectorExternal (UFM / 3rd party)
MQM9790-NS2R64 ports 400Gb/s, unmanagedConnector-to-powerExternal management (UFM ready)
Why Choose Starsurge
  • Global supply chain with express delivery worldwide
  • Technical expertise in topology design and OSFP cabling optimization
  • Tailored BOM with custom cable assemblies and extended service contracts
  • Multilingual support in English, Mandarin, and Cantonese
  • Competitive volume pricing for government, research, and enterprise tenders
Frequently Asked Questions
Q: What is the main difference between MQM9790-NS2R and MQM9700-NS2R?
A: MQM9790-NS2R is unmanaged and does not include an on-board subnet manager; it is designed to be managed by external controllers like NVIDIA UFM. MQM9700-NS2R includes an internal subnet manager for standalone operation up to 2000 nodes.
Q: Can I use the C2P (NS2R) model in a standard front-to-rear cooling data center?
A: C2P airflow draws air from the connector side (rear) to the power side (front). It is intended for specific reverse-cooling architectures. Please verify your rack cooling direction before ordering.
Company Introduction
Hong Kong Starsurge Group Co., Limited - Founded in 2008, Starsurge is a technology-driven provider of network hardware, IT services, and system integration solutions. We serve government, healthcare, manufacturing, education, finance, and enterprise sectors worldwide.
Key Facts - MQM9790-NS2R
  • 64 x 400Gb/s NDR ports (32 OSFP)
  • 51.2 Tb/s switching capacity
  • C2P reverse airflow (connector-to-power)
  • SHARPv3 in-network acceleration ready
  • Unmanaged, requires external UFM
  • 1+1 redundant 80Plus Gold PSU
Product Tags: 400GB/s Mellanox managed switch   Mellanox MQM9790-NS2R network switch   high-speed server network switch  
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