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  3. NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s
China NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s
China NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s

  1. China NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s
  2. China NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s
  3. China NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s
  4. China NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s
  5. China NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s
  6. China NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s

NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router | 51.2Tb/s

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Payment Terms T/T
Model NO. MQM9790-NS2R
Origin India / Israel / China
Delivery Time Based on inventory
Function Lacp, Stackable, Vlan Support
Trademark Mellanox
Supply Ability Supply by project/batch
Technology Infiniband
Specification Without management
Transmission Rate 10/100/1000Mbps
Packaging Details outer box
Ports 48
Model Number MQM9790-NS2R(920-9B210-00RN-0D0)
Brand Name Mellanox

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T Model NO. MQM9790-NS2R
Origin India / Israel / China Delivery Time Based on inventory
Function Lacp, Stackable, Vlan Support Trademark Mellanox
Supply Ability Supply by project/batch Technology Infiniband
Specification Without management Transmission Rate 10/100/1000Mbps
Packaging Details outer box Ports 48
Model Number MQM9790-NS2R(920-9B210-00RN-0D0) Brand Name Mellanox
High Light Nvidia Mellanox 400Gb/s InfiniBand router ，64-port NDR InfiniBand switch ，51.2Tb/s throughput network switch
NVIDIA Mellanox MQM9790-NS2R 64-Port NDR 400Gb/s InfiniBand Router
High-performance InfiniBand router delivering 64 ports of 400Gb/s full bidirectional bandwidth with 51.2Tb/s throughput and advanced routing capabilities for large-scale HPC and AI fabrics.
Product Overview
The MQM9790-NS2R is a managed router in the NVIDIA Quantum-2 series, featuring 64 QSFP56 ports running at 400Gb/s per port. Unlike standard switches, this model offers advanced routing functionality including InfiniBand subnet routing, traffic isolation, and multi-tenant network segmentation. With C2P (rear-to-front) airflow, it's ideal for data center racks requiring rear cold-aisle configurations.
The integrated x86 dual-core CPU runs MLNX-OS, enabling comprehensive on-box management including integrated subnet manager and advanced routing protocols for large-scale fabrics.
Key Features
  • 64 x 400Gb/s Ports: Full bidirectional bandwidth with QSFP56 connectors
  • 51.2Tb/s Throughput: Non-blocking aggregate switching capacity with ultra-low latency
  • Advanced InfiniBand Routing: Subnet routing, traffic isolation, and multi-tenant segmentation
  • In-Network Computing (SHARP v3): Hardware-accelerated collective offload reduces MPI operations time
  • Managed with MLNX-OS: On-board dual-core x86 CPU with 8GB RAM and 32GB SSD
  • 1+1 Redundant Power & Fans: Hot-swappable 80 Gold+ power supplies with C2P airflow
  • High Efficiency: ATIS weighted power consumption as low as 180W when fully populated
Router Capabilities
The MQM9790-NS2R provides advanced InfiniBand routing features beyond standard switching:
  • Subnet-to-subnet routing for multi-tier fabrics
  • Traffic isolation and virtual fabric support
  • Multi-tenant network segmentation
  • Enhanced forwarding tables for large-scale deployments
  • Integration with UFM for routing policy management
Airflow Direction
This model features C2P (rear-to-front) airflow, drawing cool air from the rear and exhausting hot air through the front. For front-to-rear cooling, order the MQM9790-NS2F model.
In-Network Computing with SHARP v3
NVIDIA SHARP v3 technology enables the router to perform collective operations such as MPI reductions directly within the network fabric, drastically reducing MPI operation time and freeing CPU cores for application computation.
Typical Deployments
  • Large-Scale HPC Clusters: Interconnecting multiple subnets in petascale computing environments
  • Multi-Tenant AI Infrastructure: Network isolation for AI training and inference workloads
  • Spine Routing in Fat-Tree Fabrics: Routing layer between leaf switches in large InfiniBand networks
  • Enterprise Data Centers: High-performance storage, database, and compute workloads
  • Cloud and Bare-Metal Infrastructures: Multi-tenant environments requiring high-bandwidth, low-latency fabrics
Technical Specifications
ParameterSpecification
ModelMQM9790-NS2R
SeriesNVIDIA Quantum-2
Product TypeInfiniBand Router
Ports64 x QSFP56 (NDR 400Gb/s)
Aggregate Throughput51.2Tb/s (non-blocking)
LatencyUnder 90ns (port-to-port)
Switch ASICNVIDIA Quantum-2 NDR
CPUIntel x86 dual-core
System Memory8GB RAM, 32GB SSD
Power Supplies1+1 redundant, hot-swappable, 100-240VAC
Typical Power (ATIS)180W - 200W (fully populated)
CoolingC2P (rear-to-front), hot-swappable fans
Form Factor1U rackmount
Weight12.5 kg (approx.)
Key Facts
Ports64 x NDR 400Gb/s
Throughput51.2Tb/s
LatencyUnder 90ns
TypeRouter
AirflowC2P (Rear-to-Front)
Power (ATIS)180W - 200W
Compatibility
Fully interoperable with NVIDIA Mellanox ConnectX adapters (NDR, HDR, EDR, FDR), LinkX cables, and transceivers. Compliant with IBTA Specification 1.4 and 1.3, with backward compatibility to HDR (200Gb/s) and EDR (100Gb/s) technologies.
Selection Guide
Ordering Part NumberDescriptionAirflowType
MQM9700-NS2F400Gb/s InfiniBand 1U switch, 64 QSFP56P2C (front-to-rear)Switch
MQM9700-NS2R400Gb/s InfiniBand 1U switch, 64 QSFP56C2P (rear-to-front)Switch
MQM9790-NS2F400Gb/s InfiniBand 1U router, 64 QSFP56P2C (front-to-rear)Router
MQM9790-NS2R400Gb/s InfiniBand 1U router, 64 QSFP56C2P (rear-to-front)Router
Advantages
  • Industry-leading 51.2Tb/s throughput in compact 1U chassis
  • Advanced routing enables multi-subnet fabrics and tenant isolation
  • High port density reduces infrastructure footprint and operational expenses
  • Backward compatible with HDR and EDR technologies
  • Enhanced telemetry with UFM for real-time network insights
  • Optimized C2P airflow for efficient thermal management
Buyer Checklist
✔ Confirm airflow direction (C2P rear-to-front for this model)
✔ Verify power input voltage (100-240VAC)
✔ Choose router (MQM9790) or switch (MQM9700) based on routing needs
✔ Select appropriate QSFP56 cables or optics
✔ Check rack depth compatibility (590.6mm / 27")
✔ Plan for 1U spacing and cooling clearance
✔ Design routing topology for multi-subnet deployments
Frequently Asked Questions
What is the difference between MQM9790-NS2R and MQM9700-NS2R?
The MQM9790 is an InfiniBand router with advanced routing capabilities, while the MQM9700 is a standard switch. Both share the same hardware platform but the MQM9790 supports subnet routing and multi-tenant segmentation.
What is the difference between MQM9790-NS2R and MQM9790-NS2F?
The only difference is airflow direction. NS2F has P2C (front-to-rear) airflow, while NS2R has C2P (rear-to-front) airflow. All other specifications are identical.
Can this router be used with HDR or EDR adapters?
Yes, the Quantum-2 series is backward compatible with HDR (200Gb/s) and EDR (100Gb/s) InfiniBand technologies.
Company Introduction
Hong Kong Starsurge Group Co., Limited - Network hardware and system integration provider
Hong Kong Starsurge Group Co., Limited is a technology-driven provider of network hardware, IT services, and system integration solutions. Founded in 2008, the company serves customers worldwide with products including network switches, NICs, wireless access points, controllers, cables, and related networking equipment.
Backed by an experienced sales and technical team, Starsurge supports industries such as government, healthcare, manufacturing, education, finance, and enterprise with reliable quality, responsive service, and tailored solutions.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Distributor/Wholesaler,Agent,Exporter,Trading Company,Seller,Other

  • Year Established:

    2008

  • Employee Number:

    50~200

  • Ecer Certification：

    Verified Supplier

Hong Kong Starsurge Group Co. Leading IT Solutions Provider & System Integrator Since Establishment Hong Kong Starsurge Group Co. is a technology-driven enterprise specializing in IT network system integration, IoT solutions, and custom software development. With extensive industry expertise ac... Hong Kong Starsurge Group Co. Leading IT Solutions Provider & System Integrator Since Establishment Hong Kong Starsurge Group Co. is a technology-driven enterprise specializing in IT network system integration, IoT solutions, and custom software development. With extensive industry expertise ac...

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  • Hong Kong Starsurge Group Co., Limited
  • FLAT 2304, 23/F HO KING, COMMERCIAL CENTRE, 2-16 FAYUEN STREET, MONG KOK KOWLOON HONG KONG
  • https://www.mellanoxnetwork.com/

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