NVIDIA Mellanox® MIS5200Q-4DNC InfiniScale IV QDR InfiniBand Director Switch: This is a refurbished, fully-managed, rack-mountable QDR InfiniBand chassis switch built around the InfiniScale IV silicon. It is engineered to deliver 17.28 Tb/s of aggregate switching capacity across 216 QDR InfiniBand ports. This is a director-class chassis (the unit weighs 112 kg) and not a 1U top-of-rack switch; CXP-style high-density connectors carry the QDR fabric to ConnectX-2/ConnectX-3 hosts. Tested by experienced technicians and supplied in working order with minor cosmetic wear.
Engineering Context
InfiniScale IV is a 36-port crossbar ASIC family that scales out into multi-chip director chassis through a fat-tree backplane. With 17.28 Tb/s of aggregate throughput, this MIS5200Q-class platform served as a campus or row-level fabric core for HPC clusters in the QDR generation. The MIS5200Q-4DNC ships with four power supplies for redundancy, exposes a single management plane, and supports Quality of Service (QoS), high availability, and port mirroring through Mellanox subnet manager / UFM-class software.
Deployment & Use Cases
Core fabric replacement for legacy HPC clusters running ConnectX-2 / ConnectX-3 QDR HCAs.
University and research-lab teaching fabrics where current-generation HDR/NDR is overkill.
Migration spare during phased lift-and-shift from QDR to FDR or EDR backbones.
Disaster-recovery cold spare for production InfiniScale IV deployments still in service.
Technical Specifications
OEM Brand: NVIDIA / Mellanox
Manufacturer Part Number: MIS5200Q-4DNC
Switch Family: InfiniScale IV
Protocol: InfiniBand, QDR
Port Count: 216
Switching Capacity: 17.28 Tb/s
Connector Type: CXP (with QSFP+ via splitter cabling)
Power Supplies: 4 (redundant)
Management: Single management plane, fully managed
Features: Quality of Service (QoS), high availability, port mirroring
Form Factor: Rack-mountable director chassis
Weight: 112 kg
Compatibility & Constraints
Compatible with QDR-capable InfiniBand hosts (Mellanox ConnectX-2 / ConnectX-3 era HCAs) and the OpenFabrics (OFED) software stack standard for that generation.
NOT compatible with FDR-only, EDR-only, HDR, or NDR speeds at line rate — this is a QDR-generation switch and links will negotiate down to the lowest common denominator. NOT a top-of-rack 1U platform; it requires director-class rack space and lifting equipment for installation. Cabling, transceivers, and subnet manager licenses are NOT included unless visibly shown.
Why T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS specializes in refurbished NVIDIA Mellanox InfiniBand and Ethernet infrastructure. Each director chassis is bench-tested before shipment, with a 1–3 day handling window. Visit https://www.tes-itsolutions.com for our complete catalog of refurbished NVIDIA Mellanox, IBM, Lenovo, and HPE platforms.
Frequently Asked Questions
What is the MIS5200Q-4DNC NOT compatible with?
This is a director-class chassis (the unit weighs 112 kg) and not a 1U top-of-rack switch;. Confirm fitment against your platform before ordering MIS5200Q-4DNC.
What condition is the MIS5200Q-4DNC supplied in, and who sells it?
The MIS5200Q-4DNC 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-mis5200q-4dnc-infiniscale-iv-17-28tb-s-qdr-infiniband-rack-mountable.
Are there deployment constraints on the MIS5200Q-4DNC?
NOT compatible with FDR-only, EDR-only, HDR, or NDR speeds at line rate — this is a QDR-generation switch and links will negotiate down to the lowest common denominator. This applies to MIS5200Q-4DNC specifically.