NVIDIA Mellanox MIS5025Q-1BFC 36-Port 40Gb/s QDR InfiniBand Unmanaged Switch: This is a 1U short-depth, 36-port QSFP unmanaged InfiniBand switch from the IS5000 (InfiniScale-IV) family running at 40Gb/s QDR per port. It ships with a single power supply and PSU-side to connector-side airflow. This is not a managed switch (no embedded Subnet Manager) and is not an FDR or Ethernet platform. This is a refurbished unit, professionally tested by T.E.S IT-SOLUTIONS.
Engineering Context
The MIS5025Q-1BFC delivers up to 2.88 Tb/s of non-blocking switching capacity across 36 QSFP ports at 40Gb/s QDR each, with sub-200ns port-to-port latency typical of the InfiniScale-IV ASIC. As an unmanaged (-1B unmanaged variant) switch it operates as a Layer-2 IB forwarding plane and requires an external Subnet Manager (host-based OpenSM, or a managed switch elsewhere in the fabric) to bring the fabric up. The short-depth 1U chassis is suitable for shallow racks and edge cabinets where standard-depth switches do not fit.
Deployment & Use Cases
Edge and leaf switch in QDR InfiniBand HPC clusters managed by an external OpenSM. Storage cluster interconnect for legacy Lustre, GPFS or NFS-RDMA over QDR. Departmental scientific computing pods. Cost-effective fabric expansion in mixed QDR generations. Telco and short-depth rack deployments where 1U short-depth form factor is required.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MIS5025Q-1BFC
Series: IS5000 (InfiniScale-IV)
Ports: 36 × QSFP (QDR)
Per-Port Data Rate: 40 Gb/s (QDR)
Aggregate Switching Bandwidth: 2.88 Tb/s non-blocking
Form Factor: 1U short-depth standalone
Management: Unmanaged (external Subnet Manager required)
Power Supplies: 1 (single PSU)
Airflow: PSU side to connector side
Protocol: InfiniBand QDR
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Operates in InfiniBand QDR mode only — it does not run FDR 56Gb/s and does not run Ethernet. As an unmanaged switch it requires a Subnet Manager elsewhere in the fabric (host-based OpenSM under OFED, or a managed IB switch). Compatible with NVIDIA Mellanox ConnectX-2 and ConnectX-3 InfiniBand adapters at QDR; FDR-only adapters will negotiate down to QDR. Cabling must be QSFP QDR-rated; SDR-only cables will train at 10Gb/s per lane. Ships with a single PSU; PSU airflow direction is fixed and must match rack cooling. Fan and PSU spares must match the IS5025 SKU family.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS power-cycles, link-tests every QSFP port and verifies fan and PSU function on each MIS5025Q-1BFC before shipment. We provide expert consultation on QDR InfiniBand fabric design, OpenSM deployment and global shipping with 1–3 business day handling. Visit https://www.tes-itsolutions.com for the full inventory.
Frequently Asked Questions
What per-port data rate does the MIS5025Q-1BFC have?
The MIS5025Q-1BFC per-port data rate is 40 Gb/s (QDR), as listed in the specifications for MIS5025Q-1BFC.
What is the MIS5025Q-1BFC NOT compatible with?
This is not a managed switch (no embedded Subnet Manager) and is not an FDR or Ethernet platform. Confirm fitment against your platform before ordering MIS5025Q-1BFC.
What condition is the MIS5025Q-1BFC supplied in, and who sells it?
The MIS5025Q-1BFC 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-mis5025q-1bfc-infiniband-switch-36x-qsfp-40gbps-ports-1xpsu.