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Green PCB network card with silver QSFP56 cage and gold PCIe x16 edge connector

BFKK

BFKK MCX653105A-HDAL network card 200Gb QSFP56 PCIe 4.0 x16

SKU CH-9P7C-D9PBG

Single-port 200Gb QSFP56 card with PCIe 4.0 x16, 215 million messages per second and hardware XTS-AES encryption

  • 200 Gb/s peak bandwidth for demanding workloads
  • 215 million messages per second commit rate
  • PCIe 4.0 x16 host interface with multi-host support
  • Hardware XTS-AES encryption offloads CPU overhead
  • Flexible programmable pipelines adapt to new network flows

Product identity

The BFKK MCX653105A-HDAL is a single-port network interface card built around the NVIDIA CONNECTX-6 controller. It targets data-centre operators and high-performance computing clusters that need 200Gb/s Ethernet or InfiniBand HDR connectivity over a QSFP56 port. The PCIe 4.0 x16 host interface supports multi-host technology for dense rack deployments.

Installation notes

The card fits a standard PCIe 4.0 x16 slot and is backward compatible with PCIe 3.0 platforms, so most modern server boards accept it without a riser. A compatible QSFP56 transceiver or direct-attach cable must be sourced separately; using an incorrect module or exceeding the port’s electrical limits will prevent link establishment. Firmware should be updated before first production use to avoid known compatibility issues with certain switch families.

Pre-purchase checks

Verify that the host system provides a full PCIe 4.0 x16 electrical connection; a smaller slot will reduce available bandwidth below the rated 200Gb/s maximum. Confirm the operating system includes drivers for the CONNECTX-6 family and that the switch or peer device supports 10, 25, 40, 50, 100 or 200GbE speeds with PAM4 or NRZ signalling. Buyers who need dual-port redundancy or Fibre Channel interfaces should consider alternative models.

Highlights

  • 200 Gb/s peak bandwidth for demanding workloads
  • 215 million messages per second commit rate
  • PCIe 4.0 x16 host interface with multi-host support
  • Hardware XTS-AES encryption offloads CPU overhead
  • Flexible programmable pipelines adapt to new network flows

Specifications

No published specifications for this item yet.

Questions about this item

How can I confirm the MCX653105A-HDAL is running at 200Gb/s after installation?

Check the link status in the OS network utility or driver dashboard; it should report a 200GbE active link with PAM4 signalling on the QSFP56 port.

What comes with the card and what must I source separately?

The card ships alone; you must buy a compatible QSFP56 transceiver or direct-attach cable and ensure a PCIe 4.0 x16 slot is free.

Which speed should I select from the supported 10/25/40/50/100/200GbE list?

Choose 200GbE for maximum 200Gb/s bandwidth and 215 million messages per second; drop to 100GbE or 50GbE only if your switch or cabling cannot sustain the top rate.

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