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Green printed circuit board with two SFP28 cages and a gold PCIe x8 edge connector

Broadcom

Broadcom BCM957414N4140C dual-port 25/10 GbE PCIe 3.0 x8 OCP 3.0 network card

SKU CH-4Y3D-S52SH MPN BCM957414N4140C

Dual-port 25/10 GbE OCP 3.0 adapter with SFP28 media support and PCIe 3.0 x8 interface

  • Speed25Gbps
  • InterfacePCI-Express 3.0 x8
  • FeaturesDual-port pluggable media interface, which is compatible wit
  • Dual-port 25/10 GbE delivers high-throughput connectivity for dense server deployments
  • PCIe 3.0 x8 interface provides ample bandwidth for line-rate 25 Gbps operation
  • SR-IOV with 16 physical functions enables efficient I/O virtualisation across multiple VMs
  • TruFlow engine accelerates vSwitch processing to boost server VM density
  • BroadSAFE silicon root of trust secures the platform at hardware level

Dual-port 25/10 GbE OCP 3.0 adapter

The Broadcom BCM957414N4140C is a dual-port 25/10 GbE network adapter built for OCP 3.0 server slots. It connects through a PCI Express 3.0 x8 interface and accepts SFP28 optical transceivers or copper direct-attach cables. The card targets enterprise and cloud-scale deployments that need high-density 25 GbE connectivity.

Passive design for managed server airflow

The adapter uses a passive heatsink and relies on the server chassis fans for cooling. Power draw scales with link speed and active ports but remains within the OCP 3.0 thermal envelope for standard 1U and 2U platforms. Acoustic output is therefore dictated by the host system rather than the card itself.

OCP 3.0 slot with SFP28 media flexibility

Installation requires an OCP 3.0 mezzanine slot wired for PCIe 3.0 x8 and compliant with the SFF-8402 standard. Each port can be populated independently with a 25 GbE SFP28 transceiver or a direct-attach cable, freeing PCIe expansion slots for other accelerators. The adapter supports 16 physical functions for NIC partitioning in virtualized environments.

Highlights

  • Dual-port 25/10 GbE delivers high-throughput connectivity for dense server deployments
  • PCIe 3.0 x8 interface provides ample bandwidth for line-rate 25 Gbps operation
  • SR-IOV with 16 physical functions enables efficient I/O virtualisation across multiple VMs
  • TruFlow engine accelerates vSwitch processing to boost server VM density
  • BroadSAFE silicon root of trust secures the platform at hardware level

Specifications

BrandBroadcom
ModelBCM957414N4140C
Speed25Gbps
InterfacePCI-Express 3.0 x8
FeaturesDual-port pluggable media interface, which is compatible with a 25G SFP28 optical transceiver or a copper direct-attach cable.
Fully compliant with the SFF-8402 standard.
x8 PCI Express 3.0 compliant.
SR-IOV with up to 128 virtual functions (VFs).
Function-Level Reset (FLR) support.
TruFlowflow processing engine.
Virtual Network Termination-VXLAN, NVGRE, Geneve, GRE encap/decap.
vSwitch Acceleration.
Tunnel-aware stateless offloads.
DCB support - PFC, ETS, QCN, DCBx.
RDMA over Converged Ethernet (RoCE)
Network Controller Sideband Interface (NC-SI).
SMBus 2.0.
MCTP over SMBus.
PCIe-ba
Shipping weight0.91 kg
Package size178 × 127 × 76 mm

Questions about this item

How is the OCP 3.0 card installed in a server, and what step is often missed?

Insert the BCM957414N4140C into the server’s OCP 3.0 slot until the latch clicks, then secure the thumbscrew; the step often missed is fully tightening that thumbscrew to guarantee PCIe 3.0 x8 electrical contact.

What maintenance or replacement will the BCM957414N4140C need later?

The adapter itself has no moving parts; only the SFP28 transceivers or direct-attach cables inserted into its two ports may need replacement if a link fails or a different reach is required.

What limit appears first under sustained 25 Gbps line-rate traffic?

The PCI Express 3.0 x8 host interface caps sustained throughput at the bus maximum, so the 25 Gbps per port line rate cannot exceed the aggregate x8 bandwidth ceiling.

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