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Broadcom quad-port 25 Gb/s OCP 3.0 network adapter with four SFP28 cages

Broadcom

Broadcom BCM957504-N425G quad-port 25 Gb/s network card

SKU CH-1QBA-NVZS6 MPN BCM957504-N425G

Quad-port 25 Gb/s SFP28 OCP 3.0 adapter with PCIe 4.0 x16 interface, NIC partitioning to 16 physical functions and TruFlow engine for vSwitch acceleration

  • Rated speed25 Gbit/s
  • Interface typeOpen Computer Project (OCP) 3.0
  • Connection types4 x SFP28
  • Key featuresStandards-compliant 25/10G quad-port SFP28 OCP 3.0 adapter w

Model N425G

Connector SFP28

Speed 4x 25G

  • Four SFP28 ports deliver 25 Gb/s line-rate throughput
  • NIC partitioning provides 16 physical functions for flexible virtualization
  • TruFlow engine accelerates vSwitch processing and raises VM density
  • BroadSAFE silicon root of trust secures the OCP 3.0 platform
  • Hardware congestion avoidance eliminates bottlenecks before they form

Quad-port 25 Gb/s OCP 3.0 adapter

The Broadcom BCM957504-N425G is a quad-port 25 Gb/s Ethernet network adapter built for OCP 3.0 server slots. It targets data-centre operators and cloud builders who need high-density 25/10 GbE connectivity for virtualization, storage disaggregation and high-performance computing workloads.

OCP 3.0 form factor with four SFP28 cages

The card uses the Open Compute Project 3.0 form factor and presents four SFP28 connectors for direct-attach copper or optical transceivers. NIC partitioning supports 16 physical functions, while the TruFlow engine accelerates vSwitch processing and the BroadSAFE silicon root of trust hardens platform security.

Verify OCP 3.0 slot and SFP28 optics compatibility

Confirm your server chassis accepts an OCP 3.0 mezzanine card and that the PCIe 4.0 x16 electrical interface is available. Ensure you have suitable 25 Gb/s or 10 Gb/s SFP28 modules and cables for the intended link distances, and that your operating system supports the advanced RoCE, SDN and NVMe-oF features.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $520.99
Pricier than about 88% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameBroadcom
Model nameBCM957504-N425G
Performance
Rated speed25 Gbit/s
Ports & slots
Interface typeOpen Computer Project (OCP) 3.0
Connection types4 x SFP28
Size & build
Shipping weight0.91 kg
Package size178 × 127 × 76 mm

Other versions of this model

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Questions about this item

What throughput does the OCP 3.0 interface support on this adapter?

The OCP 3.0 interface on the BCM957504-N425G delivers line-rate, full-duplex throughput at 25 Gbps per port across its four SFP28 connectors.

What physical slot and form factor does this quad-port card require?

The BCM957504-N425G uses the OCP 3.0 form factor and installs in a PCI Express 4.0 x16 slot.

How is the adapter installed, and what step is commonly missed?

Insert the card into a PCIe 4.0 x16 slot, secure the OCP 3.0 latch, then connect SFP28 modules and cables; the step often missed is fully engaging the latch until it clicks.

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