Hardware / NICs and DPUs / ConnectX-6

NVIDIA ConnectX-6 VPI adapter

The HDR-generation NIC behind A100 clusters. DGX A100 carries eight single-port cards, one per GPU, for the compute fabric.

Max speed
200 Gb/s
Protocols
InfiniBand HDR or Ethernet
Host interface
PCIe Gen 4 x16
Cages
QSFP56
Ports
1 or 2, by model

Where it fits in the cluster

GPUThis NIC200G QSFP56 optic or AOCHDR leaf switch

Compatible with

SWITCHQuantum QM8700SERVERHGX A100 80GB

Common pitfalls

  • QSFP56, not OSFP: HDR optics and cables do not fit NDR gear without adapters.
  • Mixing HDR nodes into an NDR fabric runs those links at 200G.

Building with ConnectX-6?

Send us the cluster spec. We source the full bill of materials, and can finance it.

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Specs from vendor datasheets. Confirm configuration with your supplier before ordering.