HPE BCM57504 Ethernet 10/25Gb 4-port SFP28 Adapter

Overview

The HPE P26264-B21 is a four-port SFP28 Ethernet adapter designed to deliver high-speed network connectivity at 10 or 25 gigabits per second. It fits into a PCIe Gen4 x16 slot, ensuring ample bandwidth to prevent bottlenecks between your server’s processor and network. This adapter is built around the Broadcom BCM57504 controller, known for handling heavy data traffic with low latency, making it well suited for data centers and virtualized environments.

Key features

• Four SFP28 ports that support both 10 Gb and 25 Gb Ethernet speeds, providing flexibility for different network setups.
• PCIe Gen4 x16 interface that maintains full throughput without limiting data flow between the server and network.
• Broadcom BCM57504 controller ensures consistent performance and low latency under heavy workloads.
• Support for SR-IOV technology, which reduces CPU overhead by mapping virtual functions directly to guest operating systems, enhancing virtualization efficiency.
• RoCE v2 support enables low-latency RDMA traffic, improving performance for storage and high-performance computing applications.
• Compatibility with overlay network protocols such as VXLAN, NVGRE, and GENEVE, facilitating scalable and secure software-defined networking.
• Works seamlessly with both UEFI and legacy BIOS PXE boot methods, supporting network boot environments.
• Energy-efficient design with a typical power consumption of 15.2 watts, helping maintain power budgets in dense server racks.

Key specs

• Ports: 4 x SFP28
• Ethernet speeds: 10 Gb and 25 Gb
• Host interface: PCIe Gen4 x16
• Controller: Broadcom BCM57504
• Power consumption: 15.2 watts typical
• Network boot support: UEFI and legacy BIOS PXE
• Overlay protocol support: VXLAN, NVGRE, GENEVE
• Virtualization support: SR-IOV
• RDMA support: RoCE v2

Connectivity and compatibility

This adapter accepts fiber transceivers or direct attach copper cables in each SFP28 cage, allowing you to use existing cabling infrastructure or upgrade as needed without replacing the card. It integrates smoothly into virtualized data centers and supports advanced networking protocols that help separate tenant traffic and scale networks horizontally. The PCIe Gen4 x16 slot interface ensures compatibility with modern servers that provide high-speed data lanes.

Ideal uses and environments

The HPE P26264-B21 is a strong choice for virtualization clusters, all-flash storage arrays, and edge computing nodes where high throughput and efficient space usage are critical. Its advanced offload features and support for overlay networks make it well suited to environments that require scalable, low-latency networking. Administrators looking to refresh infrastructure with future-proof connectivity will find this adapter meets demanding traffic requirements while maintaining power efficiency.