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BFKK ConnectX-6 Lx dual-port SFP28 network card, PCIe 4.0 x8, both brackets

BFKK

BFKK ConnectX-6 Lx EN 25GbE Dual SFP28 PCIe 4.0 x8 No Crypto Both Bracket

SKU CH-MBD2-8P5F4

Dual-port 25 GbE SFP28 adapter with PCIe 4.0 x8 and both brackets included

  • Dual-port 25GbE throughput for high-speed networking
  • PCIe 4.0 x8 interface with eight lanes for bandwidth
  • SFP28 ports accept 28 Gb/s transceiver modules
  • ConnectX-6 Lx EN controller offloads packet processing
  • Both full-height and low-profile brackets included

Dual 25GbE SFP28 Adapter

This BFKK ConnectX-6 Lx EN network interface card delivers two 25GbE SFP28 ports over a PCIe 4.0 x8 host connection. It targets servers and workstations that require high-throughput, low-latency wired networking for storage, virtualization or compute clusters. The card ships without on-board cryptographic offload, keeping the feature set focused on raw packet processing.

Low-Profile and Full-Height Brackets

Both mounting brackets are included so the adapter fits standard and low-profile chassis without extra hardware. Dual SFP28 cages accept 25GbE transceivers or direct-attach cables for flexible rack cabling. The x8 edge connector requires an available PCIe 4.0 slot running at x8 electrical width to achieve rated throughput.

Verify Slot Width and Transceiver Stock

Confirm the host system has a free PCIe 4.0 slot wired for x8 operation; narrower slots will reduce bandwidth. Ensure 25GbE SFP28 optics or DACs matching your switch are on hand, as none are bundled. The adapter lacks hardware crypto acceleration, so encryption workloads will fall to the host CPU.

Highlights

  • Dual-port 25GbE throughput for high-speed networking
  • PCIe 4.0 x8 interface with eight lanes for bandwidth
  • SFP28 ports accept 28 Gb/s transceiver modules
  • ConnectX-6 Lx EN controller offloads packet processing
  • Both full-height and low-profile brackets included

Specifications

No published specifications for this item yet.

Questions about this item

What throughput does the PCIe 4.0 x8 interface cap at in practice?

The card uses a PCIe 4.0 x8 interface, which limits maximum throughput to the bandwidth of eight 4.0 lanes.

Which bracket heights are included for mounting the dual SFP28 ports?

Both a full-height and a low-profile bracket are supplied, so the card fits standard and slim chassis.

How is the card installed, and what step is often missed?

Insert the card into a PCIe 4.0 x8 or wider slot, secure the chosen bracket, then attach SFP28 modules and cables before powering on.

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