Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
The NVIDIA Quantum MQM8790-HS2R is a 200Gb/s InfiniBand smart switch engineered for high-performance computing, AI clouds, and hyperscale storage environments. This unmanaged switch delivers 40 non-blocking 200Gb/s ports in a compact 1U form factor with 16Tb/s aggregate throughput and features in-network computing acceleration via SHARP technology.
Designed as an externally managed switch with C2P (Connector-to-Power) airflow direction, it leverages advanced fabric management platforms to dramatically boost cluster efficiency while reducing operational expenses.
Key Features
40 x 200Gb/s Non-blocking Ports: Aggregate data throughput up to 16Tb/s with zero packet loss and ultra-low latency
Port Splitting Flexibility: Each QSFP56 port can operate as 2x100Gb/s, enabling 80 ports of 100G in a single 1U
In-Network Computing (SHARP): Hardware-embedded aggregation reduces data movement and accelerates MPI/NCCL collectives
Advanced Fabric Management: External management pairs with NVIDIA UFM for proactive telemetry and congestion control
Redundant & Hot-swap Power: 1+1 redundant AC power supplies with 80 Plus Gold+ certification
C2P Airflow Direction: Connector-to-Power airflow ideal for specific data center cooling layouts
Technology: SHARP & In-Network Computing
NVIDIA Quantum switches embed silicon-based aggregation engines that accelerate collective communication patterns. With SHARP technology, data is processed as it traverses the switch, reducing hops and latency. This is critical for large language model training, molecular dynamics, and weather simulation applications.
Typical Deployments
High-Performance Computing (HPC): Large-scale clusters for research, energy, and scientific computing
AI & Deep Learning Clusters: GPU-accelerated environments using NCCL optimized communication
Hyperscale Cloud & Storage: NVMe over Fabrics (NVMe-oF) and distributed storage backends with RDMA
Data Center Fat-Tree Topologies: Leaf-spine architectures needing dense 100G/200G radix
Reverse Airflow Racks: Data centers requiring C2P (connector-to-power) cooling pattern
Technical Specifications
Parameter
Specification
Ports
40 QSFP56 ports (200Gb/s each) or 80 ports at 100Gb/s via splitting
Switching Capacity
16 Tb/s non-blocking aggregate throughput
Latency
Extremely low, sub-130ns typical
Management Type
Unmanaged (external controller required)
Power Supplies
1+1 redundant, hot-swappable AC power supplies
Airflow
C2P (Connector-to-Power)
Dimensions (HxWxD)
1.7 in (43.6mm) x 17 in (433.2mm) x 23.2 in (590.6mm)
Weight
With 1 PSU: 11.4 kg; with 2 PSUs: 12.48 kg
Operating Conditions
0°C to 40°C, 10%-85% non-condensing humidity
Certifications
CE, FCC, VCCI, ICES, RCMS, RoHS compliant, ENERGY STAR
Warranty
1 year (extended available upon request)
Compatibility
Backward compatible with previous InfiniBand generations (EDR, HDR). Seamless interoperability with NVIDIA ConnectX-6, ConnectX-7 adapters, and Quantum-2 switches. Supported software includes MLNX-OS for management and compatibility with standard InfiniBand fabrics.
Check rack depth minimum 600mm for 590mm switch depth
Verify airflow compatibility: C2P requires cold aisle on QSFP connector side
Request volume quotation & lead time
Frequently Asked Questions
What is the difference between MQM8790-HS2R and MQM8790-HS2F?
The only difference is airflow direction: HS2R has C2P (Connector-to-Power), HS2F has P2C (Port-to-Power). Choose based on your rack's cold aisle location.
Can I split ports to 100Gb/s?
Yes. Each QSFP56 port can be configured as two independent 100Gb/s ports, providing double-density 100G radix.
Does this switch support RDMA?
InfiniBand natively supports RDMA with hardware transport acceleration; it is the native protocol for NVIDIA InfiniBand fabrics.
NVIDIA UFM Platform: Telemetry and predictive management for Quantum fabrics
QSFP56 Passive Copper DACs: 1m, 1.5m, 2m lengths for ToR connections
Service & Support
Hong Kong Starsurge Group provides professional pre-sales consulting, configuration design, and post-sales technical assistance for NVIDIA Quantum switches. Services include free architecture consultation, RMA support, firmware updates, and custom rack integration with global shipping options.
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...
