The NVIDIA Mellanox MSB7570-E is a Switch-IB 2 spine blade module — an EDR 100Gb/s InfiniBand switching blade designed to populate Mellanox modular director chassis. This is NOT a fixed pizza-box switch and NOT a leaf blade; it serves as the spine fabric within a director system, providing internal switching capacity to the leaf modules. MPN: MSB7570-E. Condition: Refurbished, professionally tested at T.E.S IT-SOLUTIONS for redeployment in existing Mellanox director chassis.
Engineering context. The Switch-IB 2 ASIC delivers 36 EDR 100Gb/s ports per blade, each port composed of 4 lanes at 25Gb/s NRZ. Switch silicon supports adaptive routing, congestion control, and SHARP collective offload (Scalable Hierarchical Aggregation and Reduction Protocol) to accelerate MPI all-reduce operations. Port-to-port latency is sub-100ns. The blade integrates into the chassis backplane and is hot-pluggable for non-disruptive serviceability.
Deployment and use cases. Spine blades populate HPC director switches running MPI workloads (Lustre and GPFS storage fabric, OpenMPI, Intel MPI, NVIDIA NCCL all-reduce), large-scale CFD simulations, EDA grid computing, AI training fabrics, and multi-rack supercomputing clusters where consistent EDR fabric latency is required across thousands of compute nodes.
Technical specifications:
Model: MSB7570-E
Architecture: Switch-IB 2 ASIC
Role: Spine blade for Mellanox modular director chassis
Ports per blade: 36 at EDR 100Gb/s
Lane rate: 25Gb/s NRZ x4 per port
Switch latency: under 100ns port-to-port
Switching features: adaptive routing, congestion control, SHARP collective offload
Protocol: InfiniBand EDR
Form factor: hot-swappable blade module
Compliance: RoHS 6
Condition: Refurbished, tested
Compatibility and constraints. Compatible only with Mellanox CS7500-family director chassis configured for EDR 100Gb/s. NOT compatible with HDR (200Gb/s) or NDR (400Gb/s) chassis. NOT a standalone switch — must be installed in a director chassis with matching management modules, fans, and PSUs. Buyer is responsible for verifying chassis revision, fan and PSU compatibility, and MLNX-OS firmware version before deployment.
Why TES. T.E.S IT-SOLUTIONS specializes in refurbished NVIDIA Mellanox enterprise networking gear. Every MSB7570-E is bench-tested and port-validated, with full system compatibility consultancy available on request. Standard handling time is 1–3 business days. Visit tes-itsolutions.com for our wider catalogue of refurbished InfiniBand modular switching, ConnectX adapters, and DAC/AOC cabling.