High‑performance fixed‑configuration unmanaged switch delivering 40 ports of 200Gb/s (or 80 ports of 100Gb/s) with 16 Tb/s non‑blocking throughput, in‑network computing acceleration, and ultra‑low latency — purpose‑built for HPC, AI clusters, and hyperscale data centers. Designed for external management via NVIDIA UFM™ platform.
The NVIDIA Quantum MQM8790‑HS2F is an unmanaged 200G InfiniBand smart switch designed for large‑scale data center deployments where centralized fabric management is preferred. Part of the NVIDIA Quantum QM8700 series, this switch delivers forty 200Gb/s ports in a compact 1U form factor with 16 Tb/s aggregate non‑blocking throughput and sub‑130ns cut‑through latency. Unlike its managed counterparts, the MQM8790‑HS2F is optimized for external management via NVIDIA Unified Fabric Manager (UFM™), enabling data center operators to efficiently provision, monitor, troubleshoot, and maintain modern data center fabrics at scale.
Each 200Gb/s QSFP56 port can be split into two independent 100Gb/s ports, providing up to 80 ports of 100Gb/s connectivity — ideal for double‑density top‑of‑rack deployments. The MQM8790‑HS2F features P2C (port‑to‑power) airflow, dual redundant power supplies, and full support for NVIDIA SHARP™ in‑network computing acceleration.
NVIDIA Quantum switches embed scalable hierarchical aggregation and reduction protocol (SHARP) engines directly in the silicon. Data traversing the switch can be processed — aggregated, reduced, or broadcast — without multiple round‑trips to server endpoints. This dramatically accelerates collective operations like all‑reduce, barrier, and broadcast, which are critical for deep learning frameworks (TensorFlow, PyTorch via NCCL) and MPI‑based HPC simulations. The result is up to 10x performance gains for communication‑intensive workloads and reduced CPU overhead, freeing compute resources for actual application processing.
The MQM8790‑HS2F also supports adaptive routing and congestion control algorithms that automatically balance traffic across multiple paths, delivering near‑line‑rate throughput even under high contention.
The MQM8790‑HS2F works seamlessly with NVIDIA ConnectX‑6, ConnectX‑7, and BlueField DPU adapters, supporting both InfiniBand and mixed fabrics. It is backward compatible with previous InfiniBand speeds (EDR 100Gb/s, FDR 56Gb/s). Fully interoperable with existing NVIDIA Quantum fabric switches. For management, the switch is designed to be controlled via NVIDIA Unified Fabric Manager (UFM) platform, which provides comprehensive fabric provisioning, monitoring, and predictive troubleshooting. Operating system support includes major Linux distributions (RHEL, Ubuntu, Rocky Linux) and NVIDIA certified GPU servers.
| Parameter | Detail |
|---|---|
| Model Number | MQM8790-HS2F |
| Ports & Speed | 40 QSFP56 ports; up to 200Gb/s per port; supports split into 80 ports of 100Gb/s |
| Aggregate Throughput | 16 Tb/s non‑blocking |
| Switching Latency | < 130ns (cut‑through) |
| Management | Unmanaged — external management via NVIDIA UFM™; on‑board x86 dual core CPU (Broadwell ComEx D‑1508 2.2GHz), 8GB system memory |
| Power Supply | 1+1 redundant hot‑swappable, 100‑127VAC / 200‑240VAC, 80 Plus Gold, ENERGY STAR |
| Airflow | P2C (port‑to‑power) — MQM8790-HS2F, standard depth |
| Dimensions (HxWxD) | 1.7 x 17 x 23.2 in (43.6 x 433.2 x 590.6 mm), 1U |
| Weight | With 2 PSUs: 12.48 kg / 27.5 lbs |
| Operating Temperature | 0°C to 40°C |
| Certifications | CE, FCC, VCCI, ICES, RCMS, RoHS compliant |
| Warranty | 1 year limited hardware warranty (extendable options available) |
| Orderable Part Number (OPN) | Description | Airflow | Management |
|---|---|---|---|
| MQM8790-HS2F | NVIDIA Quantum 200Gb/s InfiniBand switch, 40 QSFP56, dual AC PSU, x86 dual core, standard depth, P2C airflow, rail kit | P2C (Port to Power) | Unmanaged (UFM ready) |
| MQM8790-HS2R | Same as above but C2P airflow (power‑to‑port) | C2P | Unmanaged (UFM ready) |
| MQM8700-HS2F | Managed variant, P2C airflow, on‑board Subnet Manager, MLNX-OS | P2C | Managed (MLNX-OS) |
| MQM8700-HS2R | Managed variant, C2P airflow, on‑board Subnet Manager, MLNX-OS | C2P | Managed (MLNX-OS) |
For environments requiring centralized fabric management across hundreds or thousands of switches, the MQM8790‑HS2F offers a cost‑effective, unmanaged building block optimized for NVIDIA UFM orchestration.
Starsurge Group provides end‑to‑end lifecycle services for NVIDIA Quantum switches, including pre‑sales architecture consulting, proof‑of‑concept testing, and global logistics. Our experienced technical team offers remote troubleshooting, firmware upgrades, and RMA coordination. For UFM deployments, we offer professional services for platform configuration and integration. Warranty extension options and 24x7 priority support available upon request. Multilingual support for EMEA, Americas, and APAC regions ensures rapid response for mission‑critical deployments.
A: MQM8790-HS2F is an unmanaged switch designed for external management via NVIDIA UFM. MQM8700-HS2F includes an on‑board Subnet Manager and full MLNX‑OS for standalone management.
A: Yes, it can be managed by any standards‑compliant InfiniBand Subnet Manager, but NVIDIA UFM is recommended for advanced features like telemetry, predictive analytics, and automated orchestration.
A: Yes, each 200Gb/s port can operate at 100Gb/s using splitter cables or QSFP56 to dual QSFP56 breakout, supporting up to 80x 100Gb/s links.
A: Yes, the MQM8790-HS2F fully supports NVIDIA SHARP™ technology for collective communication acceleration, independent of management mode.
A: Passive/active copper QSFP56 DACs, active optical cables (AOC), and optical modules for distances up to hundreds of meters.
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, cabling, and infrastructure equipment. Backed by an experienced sales and technical team, Starsurge supports industries such as government, healthcare, manufacturing, education, finance, and enterprise.
With a customer‑first approach, Starsurge focuses on reliable quality, responsive service, and tailored solutions. As an authorized partner for leading networking brands, we deliver global logistics, custom software development, and multilingual support — helping clients build efficient, scalable, and dependable network infrastructure.

| Component | Supported Models / Types |
|---|---|
| Adapters | NVIDIA ConnectX‑6, ConnectX‑7, BlueField‑2 / BlueField‑3 InfiniBand |
| Cables & Optics | QSFP56 DAC (passive up to 3m, active up to 5m), AOC, optical transceivers (SR4, LR4) |
| Operating Systems | Linux (RHEL 8/9, Ubuntu 20.04/22.04, Rocky Linux), Windows Server with InfiniBand stack |
| Management Platforms | NVIDIA UFM, OpenSM, other standards‑compliant Subnet Managers |
| Topology Support | Fat Tree, DragonFly+, 2D/3D Torus, SlimFly |