NVIDIA Mellanox MIS5024Q-1BRR InfiniScale IV 36-Port QDR InfiniBand Switch (1U, Unmanaged): This is a 1U short-depth InfiniBand switch based on the InfiniScale IV (IS4) ASIC, providing 36 QSFP ports of 40Gb/s QDR connectivity. The unit is unmanaged, ships with a single power supply, and uses connector-side to PSU-side (C2P) airflow. This is a refurbished QDR fabric switch — it is NOT FDR (56Gb/s) capable and is NOT a managed/subnet-manager-equipped variant. It is NOT an Ethernet switch; this SKU runs InfiniBand only.
Engineering Context. The MIS5024Q-1BRR is built around the InfiniScale IV switch silicon, delivering 2.88 Tb/s aggregate non-blocking QDR fabric throughput at 40Gb/s per port. Port-to-port latency is in the sub-200ns range typical of the IS4 generation. As an unmanaged switch, it carries no embedded subnet manager; the IB fabric requires an external SM (e.g., OpenSM on a host or a managed switch elsewhere).
Deployment & Use Cases. Common deployments include leaf positions in QDR HPC compute fabrics, storage interconnect for Lustre/GPFS clusters running on QDR, and lab/research fabrics where an external OpenSM host already exists. It is suitable as a hot spare or fleet replacement in environments still running QDR-class workloads.
Technical Specifications.
Model / MPN: MIS5024Q-1BRR
Switch ASIC: InfiniScale IV (IS4)
Form factor: 1U rack, short depth
Ports: 36 × QSFP
Per-port speed: 40Gb/s QDR InfiniBand
Aggregate throughput: 2.88 Tb/s non-blocking
Management: Unmanaged (no embedded subnet manager)
Power supply: 1 × AC PSU
Airflow: Connector side to PSU side (C2P / reverse)
FRUs: No field-replaceable units
Compliance: RoHS
Compatibility & Constraints. Works with NVIDIA Mellanox QDR/SDR ConnectX-2 HCAs and supports legacy DDR auto-negotiation. This is a QDR (40Gb/s) switch only — it is NOT FDR/EDR/HDR capable. As an unmanaged switch, an external subnet manager is required to bring up the fabric (managed variants like the -1SRR ship with embedded SM). Airflow is C2P (reverse) — verify rack airflow direction before installation. No FRUs means PSU and fans are not field-replaceable on this SKU.
Why TES. Sourced and bench-tested by T.E.S IT-SOLUTIONS. Each unit is functionally validated and shipped with technical support. Handling time 1–3 business days from our EU stock.
Frequently Asked Questions
What is the MIS5024Q-1BRR NOT compatible with?
This is a refurbished QDR fabric switch — it is NOT FDR (56Gb/s) capable and is NOT a managed/subnet-manager-equipped variant. Confirm fitment against your platform before ordering MIS5024Q-1BRR.
What condition is the MIS5024Q-1BRR supplied in, and who sells it?
The MIS5024Q-1BRR is supplied in Refurbished condition by T.E.S IT-SOLUTIONS from EU stock, with 1-3 business day handling and worldwide B2B shipping. See https://www.tes-itsolutions.com/product-page/mellanox-mis5024q-1brr-qdr-40gb-s-36-port-infiniband-switch-1-power-supply.
Are there deployment constraints on the MIS5024Q-1BRR?
It is NOT an Ethernet switch;. This applies to MIS5024Q-1BRR specifically.