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Green circuit board with two silver SFP28 cages and gold edge connector

BFKK

BFKK MCX4421A-ACQN network card 25 Gbps SFP28 2-port OCP 2.0 Type 1

SKU CH-G55P-CKC84 MPN MCX4421A-ACQN

Dual-port 25 Gbps SFP28 OCP 2.0 Type 1 Ethernet card for high-speed server networking

  • Dual 25 Gbps ports for high-throughput networking
  • OCP 2.0 Type 1 form factor fits dense servers
  • Two SFP28 cages enable flexible fibre or copper links
  • Internal design without PCIe bracket saves rack space
  • Mellanox MCX4421A-ACQN model built for 25 GbE deployments

Dual 25 Gbps SFP28 OCP 2.0 card

The BFKK MCX4421A-ACQN is a dual-port Ethernet adapter built for OCP 2.0 Type 1 servers. It delivers two SFP28 cages rated at 25 Gbps each for high-density rack deployments. The board ships without a PCIe bracket for direct mezzanine installation.

Suits OCP 2.0 Type 1 bays needing twin 25 Gbps links

This card fits servers that accept an OCP 2.0 Type 1 form factor and provide the matching connector. Builders using standard PCIe slots, taller brackets or single-port layouts should select a different adapter.

Interface is OCP 2.0 Type 1

The mezzanine edge connector and physical dimensions follow the OCP 2.0 Type 1 specification exactly. Compatibility depends on the server chassis providing that slot type; no other mounting method is supported.

Highlights

  • Dual 25 Gbps ports for high-throughput networking
  • OCP 2.0 Type 1 form factor fits dense servers
  • Two SFP28 cages enable flexible fibre or copper links
  • Internal design without PCIe bracket saves rack space
  • Mellanox MCX4421A-ACQN model built for 25 GbE deployments

Specifications

No published specifications for this item yet.

Questions about this item

Does this OCP 2.0 Type 1 card fit a standard PCIe slot with a bracket?

The card uses an OCP 2.0 Type 1 internal form factor with no PCIe bracket, so it requires an OCP-compliant mezzanine slot rather than a standard PCIe slot.

What is the correct way to install the SFP28 transceivers into the two 25 Gbps ports?

Insert each SFP28 transceiver until it clicks firmly into the cage; the step often missed is removing the dust plugs from both the module and the port before insertion.

When should the SFP28 modules in the dual 25 Gbps ports be replaced?

Replace a module if link errors rise, the link fails to establish at 25 Gbps, or the module exceeds its vendor-rated operating temperature range.

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