Host Channel Adapter

Host Channel Adapter is a small category of InfiniBand cards: a Lenovo ConnectX-6 HDR100 dual-port adapter, Sun 40Gb QDR cards and an older Mellanox InfiniHost III. HCAs connect servers to an InfiniBand fabric for high-performance computing and low-latency storage, and the cable and switch generation has to line up with the card.

  • 6 parts
  • Free U.S. ground shipping on in-stock parts

Host Channel Adapter: 6 products

Host Channel Adapter

Frequently asked questions

What's the difference between a host channel adapter and a network card?

An HCA connects to an InfiniBand fabric and offloads RDMA transfers. Some ConnectX cards are VPI models that can run either InfiniBand or Ethernet on their ports.

What cables does an HDR100 adapter use?

HDR100 cards have QSFP56 ports and use matching QSFP56 copper or active optical cables rated for 100Gb InfiniBand.