NVIDIA Mellanox ConnectX-6 MCX653435A-HDAI OCP3.0

The NVIDIA Mellanox ConnectX-6 VPI MCX653435A-HDAI is a single-port OCP Spec 3.0 adapter providing Virtual Protocol Interconnect (VPI) flexibility — switchable between 200Gb/s HDR InfiniBand and 200GbE Ethernet — from one QSFP56 port over a PCIe 4.0 x16 host interface. Built on the ConnectX-6 ASIC (MT28908A0-XCCF-HVM), it supports native InfiniBand RDMA as well as RDMA over Converged Ethernet (RoCE v2), enabling a single adapter design to serve either InfiniBand-based HPC clusters or Ethernet-based data-center fabrics. As part of the full ConnectX-6 family, the card retains in-network computing capabilities, including hardware acceleration for MPI collective operations, alongside SR-IOV, QoS, and NVMe-oF offloads. Distinguished by an internal lock bracket and NVIDIA ordering SKU 900-9X657-0018-SI0, the MCX653435A-HDAI targets HPC, AI-training, and enterprise cluster deployments that require OCP 3.0 mechanical compliance with the flexibility to run either InfiniBand or Ethernet without changing hardware.