NVIDIA Mellanox MIS5035Q-1SFC InfiniScale IV QDR InfiniBand Switch — 36-Port QSFP, 1U, Managed: This is a 1U managed InfiniBand switch built on the InfiniScale® IV ASIC, providing 36 ports of QDR (40Gb/s) connectivity over QSFP. The unit ships with one AC power supply and an embedded PowerPC 460EX management processor. Airflow is connector-side to power-supply-side. This is an InfiniBand fabric switch — it is not an Ethernet switch and does not run Ethernet firmware. This is a refurbished unit.
Engineering Context
The InfiniScale IV ASIC implements a 36-port non-blocking crossbar at full QDR line rate, delivering 2.88 Tb/s of aggregate bidirectional switching capacity. Port-to-port cut-through latency is approximately 100 ns, sized for HPC MPI traffic and storage interconnects. The switch supports adaptive routing, congestion control, and full InfiniBand credit-based flow control. The single-PSU configuration suits non-redundant edge deployments; this unit is RoHS5 compliant.
Deployment & Use Cases
Top-of-rack and edge-of-fabric switching for QDR InfiniBand HPC clusters running MPI workloads such as LAMMPS, GROMACS, and OpenFOAM. Connectivity to legacy ConnectX-2 and ConnectX-3 QDR HCAs. Storage fabric for InfiniBand-attached parallel filesystems including Lustre and IBM Spectrum Scale (GPFS) at QDR rates. Lab and research-computing fabric expansion where QDR endpoints remain in production.
Technical Specifications
OEM: NVIDIA Mellanox
Part Number: MIS5035Q-1SFC
Switch ASIC: InfiniScale® IV
Ports: 36 × QSFP (QDR 40Gb/s)
Protocol: InfiniBand QDR
Aggregate Switching Capacity: 2.88 Tb/s bidirectional
Port-to-Port Latency: ~100 ns
Management: Managed (embedded PPC460EX subnet manager)
Power Supplies: 1 (AC)
Airflow: Connector side to PSU side
Form Factor: 1U, standard depth
Compliance: RoHS5
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with QSFP QDR cables (passive copper DAC, active copper, AOC, and QDR optical transceivers) and ConnectX-2/ConnectX-3 QDR HCAs. Operates with OpenSM running externally or with the embedded subnet manager on the PPC460EX. Not compatible at full line rate with FDR (56Gb/s) or EDR (100Gb/s) endpoints — links auto-negotiate down to QDR. This unit is not field-convertible to Ethernet mode and does not pass IP traffic without an InfiniBand-to-Ethernet gateway. A single PSU means no power redundancy; pair with UPS protection if uptime is critical.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every InfiniBand switch for full port lane integrity, ASIC functional pass, fan and PSU operation, and management subnet startup before shipment. We provide expert consultation on InfiniBand fabric design, global shipping with 1–3 day handling, and comprehensive warranty.
Frequently Asked Questions
What ports does the MIS5035Q-1SFC have?
The MIS5035Q-1SFC ports is 36 × QSFP (QDR 40Gb/s), as listed in the specifications for MIS5035Q-1SFC.
What is the MIS5035Q-1SFC NOT compatible with?
This is an InfiniBand fabric switch — it is not an Ethernet switch and does not run Ethernet firmware. Confirm fitment against your platform before ordering MIS5035Q-1SFC.
What condition is the MIS5035Q-1SFC supplied in, and who sells it?
The MIS5035Q-1SFC 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/fully-refurbished-mellanox-mis5035q-1src-36-port-infiniband-switch-support.