BCM957504-N425G Broadcom 4 Port SFP28 Ethernet PCI Express SFF Network Adapters

Overview of Broadcom BCM957504-N425G Quad-Port Adapter 

The Broadcom BCM957504-N425G is a high-density, enterprise-grade 4-port SFP28 Ethernet network adapter designed for modern cloud infrastructures, hyperscale data centers, and high-performance computing environments. Built on PCI Express 4.0 x16 architecture and fully compliant with Open Compute Project (OCP) 3.0 standards, this advanced small form factor (SFF) adapter delivers ultra-fast 25GbE connectivity, advanced virtualization capabilities, and industry-leading security features for mission-critical workloads.

General Product Information

• Manufacturer: Broadcom
• Part Number: BCM957504-N425G
• Product Type: Network Adapter

Technical Specifications

• Interface: 4-Port SFP28 Ethernet (OCP 3.0)
• Form Factor: Small Form Factor (SFF)
• Standard: Open Compute Project (OCP) 3.0 compliant
• Media Interface: Quad-port pluggable SFP28 design
• Cabling Support: Optical transceivers and DAC cables

Quad-Port 25GBE SFP28 High-Speed Connectivity

• 4 x SFP28 25GbE high-performance Ethernet ports
• Compatible with SFP28, SFP+, and DAC direct-attach cables
• Supports scalable multi-port data center networking
• Designed for low-latency, high-bandwidth workloads

PCI Express 4.0 x16 High-Bandwidth Architecture

• PCI Express 4.0 x16 compliant architecture
• High-speed data transfer and optimized bandwidth usage
• Stable performance for virtualization and cloud systems

Media and Connectivity Capabilities

• Supports SFP28, SFP+, and copper direct-attach cables
• Fully compliant with SFF-8402 standard
• High-speed multi-rate Ethernet support
• Low-latency fiber and copper networking

BroadSAFE Technology

• Broadcom BroadSAFE secure PCIe adapter architecture
• Hardware-based security and trusted execution
• Protection against unauthorized system access

Multi-Host and Virtualization Support

• Supports up to 4 host systems (Multi-Host architecture)
• SR-IOV with up to 1,000 Virtual Functions (VFs)
• Function-Level Reset (FLR) support
• TRUFlow™ intelligent flow processing engine

Networking and Acceleration Features

Overlay and Virtual Network Offloads

• VXLAN, NVGRE, Geneve, and GRE encapsulation/decapsulation
• vSwitch acceleration for virtualized environments
• Tunnel-aware stateless offloading technology

Data Center Bridging and RDMA Support

• RDMA over Converged Ethernet (RoCE)
• DCB support including PFC, ETS, QCN, and DCBx
• Advanced congestion avoidance mechanisms

Performance Optimization Technologies

Packet Processing and Offload Acceleration

• IPv4 and IPv6 offloading support
• TCP, UDP, and IP checksum offloads
• Large Send Offload (LSO) and Large Receive Offload (LRO)
• TCP Segmentation Offload (TSO)
• Receive Side Scaling (RSS) and Transmit Side Scaling (TSS)

Network Efficiency Enhancements

• Multiqueue, NetQueue, and VMQ support
• Jumbo frames support up to 9 KB
• Interrupt coalescing for CPU efficiency
• VLAN insertion and removal acceleration

Management, Boot, and System Integration

Enterprise Management Interfaces

• Network Controller Sideband Interface (NC-SI)
• SMBus 2.0 and MCTP over SMBus
• MSI and MSI-X interrupt support
• Advanced system monitoring and control

Boot and Deployment Capabilities

• PXE network boot support
• UEFI boot compatibility
• iSCSI boot functionality
• Wake-on-LAN (WOL) support

Highlights of Broadcom BCM957504-N425G SFP28 PCIe Adapter

The Broadcom BCM957504-N425G 4 Port SFP28 Ethernet PCI Express Small Form Factor OCP3.0 Network Adapter is engineered for enterprise-grade networking environments where speed, scalability, and reliability are paramount. Featuring four independent SFP28 ports, PCIe Gen4 x16 bandwidth, and OCP3.0 compliance, it integrates seamlessly into modern server infrastructures. This adapter is designed to deliver consistent high-speed connectivity for hyperscale data centers, cloud providers, and mission-critical enterprise workloads.

OCP3.0 Small Form Factor

The adapter conforms to the OCP3.0 small form factor specification, ensuring interoperability with Open Compute Project systems. Its compact design optimizes space utilization in dense server environments, reducing infrastructure complexity. This compliance streamlines deployment, promotes modular integration, and supports hyperscale operators seeking efficiency and standardization in their networking hardware.

BroadSAFE Security Technology

BroadSAFE technology enhances the BCM957504-N425G with industry-leading security features. It provides secure boot, encryption, and hardware-level protections to safeguard sensitive data. Enterprises benefit from compliance with stringent security standards, ensuring reliable protection against unauthorized access, cyber threats, and data breaches in mission-critical environments.

PCIe Gen4 x16 Bandwidth Efficiency

The PCIe Gen4 x16 interface provides double the throughput compared to PCIe Gen3, ensuring rapid communication between the adapter and host systems. This enhanced bandwidth supports virtualization, cloud computing, and high-performance applications without bottlenecks. Enterprises benefit from consistent throughput, reduced latency, and optimized performance across diverse workloads, making the BCM957504-N425G a future-ready solution for demanding environments.

Quad-Port SFP28 Connectivity Advantages

With four independent SFP28 ports, the BCM957504-N425G offers scalability and redundancy for enterprise networks. IT administrators can configure load balancing and failover protection to maintain continuous service availability. This quad-port design enhances flexibility, allowing enterprises to optimize traffic flow, ensure uninterrupted performance, and expand bandwidth capacity as network demands grow.

SR-IOV Virtualization Support

The BCM957504-N425G supports SR-IOV with hundreds of virtual functions, enabling efficient virtualization. This allows multiple virtual machines to share the adapter while maintaining high performance. Enterprises leveraging cloud and virtualized infrastructures benefit from optimized resource allocation, reduced overhead, and improved scalability for complex workloads.

Advanced Offload Capabilities

Offload features such as TCP segmentation offload, large send offload, and receive-side scaling reduce CPU utilization. These capabilities improve system efficiency by handling networking tasks directly on the adapter. Enterprises achieve higher throughput, lower latency, and smoother performance for demanding workloads such as AI, machine learning, and big data analytics.

TruFlow Flow Processing Engine

The TruFlow engine enhances packet processing efficiency, enabling advanced traffic management. It supports tunnel-aware stateless offloads and accelerates vSwitch operations. This ensures optimized performance for applications requiring complex traffic handling, such as VXLAN, NVGRE, and Geneve encapsulation, making the BCM957504-N425G ideal for modern cloud-native environments.

RDMA over Converged Ethernet (RoCE)

RoCE support allows the BCM957504-N425G to deliver low-latency, high-throughput communication for HPC and storage applications. This feature is critical for workloads requiring real-time responsiveness, such as AI training, scientific simulations, and large-scale analytics. Enterprises benefit from improved efficiency and reduced latency in distributed computing environments.

Data Center Bridging (DCB) Features

DCB support includes priority flow control, enhanced transmission selection, and congestion notification. These features optimize traffic management in converged networks, ensuring reliable performance for storage and compute workloads. Enterprises achieve better quality of service, reduced packet loss, and improved efficiency in high-density data center deployments.

IPv4 and IPv6 Offloads

The BCM957504-N425G supports IPv4 and IPv6 offloads, reducing CPU overhead for packet processing. This ensures efficient handling of modern networking protocols, enhancing scalability and performance. Enterprises benefit from seamless integration with dual-stack environments, ensuring compatibility with both legacy and next-generation infrastructures.

Jumbo Frame Support

Support for jumbo frames up to 9KB improves efficiency in transferring large data sets. This reduces overhead and enhances throughput for applications such as big data analytics, scientific computing, and media streaming. Enterprises achieve faster communication, reduced latency, and improved performance for bandwidth-intensive workloads.

Network Boot Options

The adapter supports PXE, UEFI, and iSCSI boot, enabling flexible deployment in diverse environments. These options simplify provisioning and ensure compatibility with enterprise boot infrastructures. IT teams benefit from streamlined deployment, reduced configuration complexity, and improved manageability in large-scale environments.

Wake-on-LAN Functionality

Wake-on-LAN support allows remote activation of systems, enhancing manageability in large-scale environments. This feature reduces energy consumption by enabling systems to remain in low-power states until needed. Enterprises benefit from improved efficiency, reduced operational costs, and enhanced control over distributed infrastructures.

Function-Level Reset (FLR) Support

FLR support ensures that individual functions can be reset without impacting the entire system. This enhances reliability and simplifies troubleshooting in complex environments. Enterprises achieve improved uptime, reduced maintenance overhead, and enhanced resilience for mission-critical workloads.

Multiqueue and VMQ Features

Multiqueue and VMQ support optimize traffic distribution across multiple cores and virtual machines. This ensures balanced workloads and improved performance in virtualized environments. Enterprises benefit from efficient resource utilization, reduced bottlenecks, and enhanced scalability for diverse applications.

Interrupt Coalescing Efficiency

Interrupt coalescing reduces CPU overhead by grouping multiple interrupts into fewer events. This enhances system efficiency and reduces latency for high-throughput workloads. Enterprises achieve smoother performance, improved scalability, and enhanced responsiveness for real-time applications.

Applications in Hyperscale Data Centers

The BCM957504-N425G is ideal for hyperscale data centers requiring high-speed, secure, and scalable networking. Its advanced features support workloads such as AI, machine learning, cloud computing, and big data analytics. Enterprises benefit from reliable performance, future-ready infrastructure, and reduced total cost of ownership.

Deployment Flexibility in Diverse Environments

Deployment flexibility is a key advantage of the BCM957504-N425G. Its OCP3.0 compliance and compatibility with modern architectures allow seamless integration into diverse environments. Enterprises can deploy the adapter in configurations tailored for redundancy, scalability, or performance optimization, ensuring adaptability to evolving business needs.