The NVIDIA/Mellanox MCX653106A-HDAT is a ConnectX-6 VPI network adapter built for AI/HPC clusters, RDMA-ready storage, and high-performance data centers. It provides dual QSFP56 ports supporting HDR InfiniBand up to 200Gb/s per port and 200GbE, giving you flexible deployment across InfiniBand or Ethernet fabrics on the same platform. (NVIDIA Docs)

Designed for low-latency, high-message-rate workloads, ConnectX-6 VPI delivers sub-600ns latency and up to 215 million messages/sec, helping accelerate east-west traffic between GPU servers and compute nodes. (CDW)

Key specs (quick view):

• Interface: PCIe Gen4 x16 (Gen3 compatible) (CDW)

• Ports: 2× QSFP56 (copper & optical supported) (NVIDIA Docs)

• Use cases: GPU/AI training fabrics, HPC interconnect, low-latency storage and virtualization networks (CDW)