NVIDIA Mellanox MIS5022Q-1BRR InfiniScale IV QDR InfiniBand Switch, 8-Port QSFP, 1 PSU, Unmanaged, with FRU Support: This is a fixed-configuration 8-port QDR (40Gb/s) InfiniBand edge switch built around the InfiniScale IV ASIC. Like the rest of the MIS5022Q family it is unmanaged — there is no chassis manager and no on-board Subnet Manager — but unlike the "F" SKU this 1BRR variant carries field-replaceable unit (FRU) support so the power supply and fan tray can be serviced in place. This is a short-depth 1U rack-mountable enclosure, not a managed director switch and not the 36-port MIS5030Q. RoHS-6 compliant. This is a refurbished unit.
Engineering Context
The InfiniScale IV ASIC delivers 640Gb/s of non-blocking aggregate switching across the 8 QSFP ports at 40Gb/s QDR each, with sub-100ns port-to-port cut-through latency typical for this generation. The 1BRR build adds a serviceable PSU and fan tray so a single failed unit does not require RMA of the entire chassis — useful in 24x7 production HPC fabrics where mean time to recovery matters. The unit still relies on an external Subnet Manager (OpenSM on a host or a managed peer switch) for fabric bring-up, partitioning and routing because there is no on-board management plane.
Deployment & Use Cases
Production edge or top-of-rack switch in small QDR HPC clusters where on-site PSU/fan replacement is required. Storage back-end fabrics (Lustre, GPFS, BeeGFS) running QDR. Aggregation for up to 8 compute nodes inside a fat-tree leaf layer. Long-running test-bed fabrics where chassis-level reliability beats the cost premium of a managed director.
Technical Specifications
OEM: Mellanox Technologies (NVIDIA)
Part Number: MIS5022Q-1BRR
Switch ASIC: InfiniScale IV
Ports: 8 x QSFP
Per-Port Speed: 40Gb/s QDR InfiniBand
Aggregate Bandwidth: 640Gb/s non-blocking
Management: Unmanaged (external Subnet Manager required)
Power Supplies: 1 (FRU — field-replaceable)
FRU Support: Yes (suffix "R")
Airflow: Single fixed direction per "1B" suffix code — verify against the NVIDIA spec sheet matches your aisle convention before deployment
Form Factor: 1U short-depth rack-mountable
Compliance: RoHS-6
Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Compatible with any QDR-capable QSFP InfiniBand HCA — including ConnectX-2, ConnectX-3 and ConnectX-3 Pro in QDR mode — over QSFP DAC, QSFP AOC or QDR fibre transceivers. Requires an external OpenSM or managed peer in the subnet for fabric bring-up; the switch will not pass traffic without a running Subnet Manager. Not Ethernet-capable: ports are dedicated InfiniBand QSFP, not VPI. Power supply is a single non-redundant unit; for redundant power use a 2-PSU member of the InfiniScale IV family. Confirm airflow direction matches your data-centre aisle convention before installation.
Why Choose T.E.S IT-SOLUTIONS
Every MIS5022Q-1BRR is bench-tested on QDR HCAs to verify all 8 ports bring up at 40Gb/s and that the FRU power supply and fan tray are operational before shipment. T.E.S IT-SOLUTIONS provides consultation on Subnet Manager placement and FRU spares strategy. Visit tes-itsolutions.com for bulk pricing. 1–3 day handling time with global tracked shipping.