MQM8790-HS2F – 40-Port 200Gb/s HDR InfiniBand Managed Switch

The MQM8790-HS2F from NVIDIA is a 1U managed InfiniBand switch providing 40 HDR QSFP56 ports at 200Gb/s per port. For our B2B customer base — resellers, system integrators, and IT procurement teams — this is a core SKU for building HPC clusters, AI training backends, and high-density storage fabrics requiring non-blocking fat-tree or torus topologies with aggregate throughput of up to 16 Tb/s.

We stock this unit for repeat wholesale supply. Units within a single batch are sourced from the same production run where possible, which simplifies firmware baseline consistency across multi-switch deployments and reduces integration risk for managed fabrics using UFM, CLI, SNMP or REST API control.

Every shipment leaves our warehouse CE/FCC/RoHS compliant with full export documentation prepared for overseas buyers. Units are covered by a standard 12-month vendor-backed warranty channel; our in-house RMA team handles defect claims, cross-ship evaluations, and serial-level traceability so end-customer disputes can be resolved quickly.

Before committing to volume orders, integrators should verify that connected hosts and host channel adapters support HDR link rates (backward compatibility with EDR/100Gb/s and lower is supported, but actual link rate depends on endpoints), confirm front-to-back airflow matches rack containment, and check PSU plug type against site power provisioning. Our team can advise on configuration matching — 40-port HDR vs. larger 80-port Quantum-2 (NDR) or unmanaged alternatives — so you quote the right tier for each project rather than oversizing.

For current stock levels, tiered pricing, and delivery schedules to your region, request a wholesale quote and our account team will respond with a formal offer.

Key specifications (table)

Parameter	Specification
Model	MQM8790-HS2F
Ports	40 × HDR (200Gb/s) QSFP56 InfiniBand
Total throughput	Up to 16 Tb/s switching capacity
Forwarding rate	Over 8.3 billion packets per second (Bpps)
Latency	Sub-microsecond port-to-port
Form factor	1U rackmount
Cooling	Front-to-back airflow (confirm direction matches rack containment)
Redundancy	Hot-swappable fans and dual redundant power supplies
Management	Mellanox Unified Fabric Manager (UFM), CLI, SNMP, REST API
Power efficiency	Energy-optimized design for high-density deployments

Reseller & Integrator Guidance

• All 40 ports are HDR QSFP56 with backward compatibility to EDR/100Gb/s and lower; final link rate is determined by connected adapters and cables — validate endpoint capability before finalizing cable BOMs for your customers.
• The MQM8790 is the 40-port SKU within NVIDIA’s Quantum HDR family; 80-port Quantum-2 (NDR) and unmanaged units serve other fabric scales. Match port count to project topology to avoid over-specification on tenders.
• At order time, confirm PSU plug type, rack power budget, and airflow direction against the deployment site; mounting kits and accessory availability can be quoted alongside switch quantities.

Wholesale & Procurement Notes

• MOQ: negotiable per project; single-unit evaluation orders accepted for qualified partners.
• Pricing: tiered volume pricing available — request a quote for your quantity band.
• Lead time: typically 3–7 business days for in-stock items; larger batches quoted individually.
• Packing & shipping: original retail packaging or neutral bulk cartons; DHL/FedEx/air/sea freight options with full export paperwork (CE/FCC/RoHS compliant).
• RMA window: 12-month warranty with a 30-day DOA/replacement window; serial-number-level support via our RMA desk.