MQM9790-NS2R Mellanox Unmanaged Switch

High-Performance Rackmount InfiniBand Layer 2 Fabric Switch with the MQM9790-NS2R for 400Gb/s Cluster Interconnects

The MQM9790-NS2R is a rackmount standalone InfiniBand switch engineered as a 32-port 400Gb/s OSFP Layer 2 fabric for latency-sensitive east-west traffic in AI and HPC environments. By focusing on non-blocking fabric behavior and deterministic forwarding, the platform supports high fan-in/fan-out topologies where GPU nodes, storage targets, and compute islands must exchange data with minimal jitter under sustained load.

With its 32 x 400Gb/s OSFP interface design, the MQM9790-NS2R aligns to modern spine/leaf architectures, enabling scalable port density while preserving signal integrity at high line rates. The Layer 2 switching model is optimized for InfiniBand cluster fabrics rather than enterprise VLAN constructs, simplifying the data path for parallel compute and high-performance storage backends. Redundant power supplies provide continuity for always-on fabrics where interconnect availability directly impacts job completion time and storage I/O service levels.

Why Choose the MQM9790-NS2R?

The MQM9790-NS2R delivers a practical density-to-performance ratio for building or expanding InfiniBand spine and leaf tiers, consolidating 400Gb/s connectivity in a rack-ready footprint. As a dedicated Layer 2 fabric element, it supports predictable scaling profiles for multi-rack deployments and reduces architectural risk by prioritizing interconnect reliability, power resiliency, and consistent low-latency behavior across congested east-west flows.

Mellanox designs switching platforms around data centre-grade thermals, signal integrity, and sustained fabric operation, aligning with modern rack infrastructure and serviceability expectations. The MQM9790-NS2R reflects this engineering discipline through a purpose-built InfiniBand interconnect approach focused on cluster uptime, cable plant consistency, and long-term operational stability.

Key Applications:

• InfiniBand spine/leaf fabrics for AI/HPC clusters
• Scale-out GPU compute interconnect
• High-performance storage networks for parallel filesystems
• Low-latency east-west traffic aggregation

At Happyware - Server Hardware you benefit from non-binding offers tailored to your fabric design and rollout timeline for the MQM9790-NS2R, helping you standardize port counts and optics choices efficiently. For larger cluster builds, bulk order discount options support predictable procurement across multiple racks and expansion phases.