NVIDIA Mellanox MSX6005F-1BFS SwitchX-2 FDR InfiniBand 1U Switch — 12-Port QSFP+, 1 PSU, Unmanaged: This is a 1U unmanaged InfiniBand switch built on the SwitchX®-2 ASIC, providing 12 ports of FDR (56Gb/s) connectivity over QSFP+. The unit ships with one AC power supply, a short-depth chassis, and connector-side-out airflow. This is an unmanaged InfiniBand switch — it does not include an embedded subnet manager and requires an external OpenSM running on a host adapter. This is a refurbished unit.
Engineering Context
The SwitchX-2 ASIC delivers 1.344 Tb/s of aggregate bidirectional switching capacity across 12 QSFP+ FDR ports. Port-to-port cut-through latency is approximately 170 ns at FDR rates. The switch supports adaptive routing, congestion control, and full InfiniBand credit-based flow control as defined by the IBTA specification. The unmanaged variant ships without onboard CPU or management Ethernet, lowering cost and power for small or branch fabrics. RoHS6 compliant.
Deployment & Use Cases
Edge and small-cluster InfiniBand fabric for FDR HPC workloads such as MPI-based simulation (LAMMPS, GROMACS, OpenFOAM), Spectrum Scale (GPFS) and Lustre storage clusters at FDR rates, and CUDA-aware MPI on ConnectX-3/ConnectX-3 Pro VPI HCAs. Lab and test fabric expansion where an external subnet manager already runs. Compact deployments where 12 FDR ports satisfy port-count requirements without managed-switch overhead.
Technical Specifications
- OEM: NVIDIA Mellanox
- Part Number: MSX6005F-1BFS
- Switch ASIC: SwitchX®-2
- Ports: 12 × QSFP+ (FDR 56Gb/s)
- Protocol: InfiniBand FDR
- Aggregate Switching Capacity: 1.344 Tb/s bidirectional
- Port-to-Port Latency: ~170 ns at FDR
- Management: Unmanaged (requires external OpenSM)
- Power Supplies: 1 (AC)
- Airflow: Connector-side out
- Form Factor: 1U, short depth
- Compliance: RoHS6
- Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with QSFP+ FDR cables (passive copper DAC, active copper, AOC, and FDR optical transceivers) and ConnectX-3 / ConnectX-3 Pro VPI HCAs in InfiniBand mode. Requires an external OpenSM instance running on a connected host — this switch does not include an embedded subnet manager and will not bring up the fabric on its own. Links to QDR (40Gb/s) endpoints auto-negotiate down to QDR; not compatible at full line rate with EDR (100Gb/s) endpoints. Not field-convertible to Ethernet mode. Single PSU means no power redundancy.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS tests every InfiniBand switch for full QSFP+ port lane integrity at FDR, ASIC functional pass, fan and PSU operation, and link bring-up against an OpenSM host 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 MSX6005F-1BFS have?
The MSX6005F-1BFS ports is 12 × QSFP+ (FDR 56Gb/s), as listed in the specifications for MSX6005F-1BFS.
What is the MSX6005F-1BFS NOT compatible with?
This is an unmanaged InfiniBand switch — it does not include an embedded subnet manager and requires an external OpenSM running on a host adapter. Confirm fitment against your platform before ordering MSX6005F-1BFS.
What condition is the MSX6005F-1BFS supplied in, and who sells it?
The MSX6005F-1BFS 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-msx6005f-1bfs-switchx-2-based-12port-qsfp-infiniband-support.

