HPE Broadcom BCM57412 Ethernet 10Gb 2-Port SFP+ OCP3 Adapter - P26257-B21

The HPE P26257-B21 is a dual-port 10 Gigabit Ethernet SFP+ OCP NIC 3.0 (Open Compute Project) mezzanine network adapter based on the Broadcom BCM57412 controller. Delivering two independent 10GbE SFP+ ports in an OCP 3.0 mezzanine form factor, it provides high-bandwidth server connectivity for HPE ProLiant servers without consuming PCIe slots — ideal for data center deployments requiring dual 10GbE in a space-efficient OCP form factor.

Key Features

• Dual 10GbE SFP+: Two independent 10G ports for redundant or bonded connectivity
• OCP NIC 3.0: Mezzanine form factor — no PCIe slot required
• Broadcom BCM57412: Proven enterprise Ethernet controller
• SR-IOV Support: Hardware virtualization for VMware, KVM, Hyper-V
• HPE Validated: Tested for HPE ProLiant OCP 3.0-capable servers
• Low Latency: Optimized for data center workloads

Technical Specifications

• Part Number: P26257-B21
• Controller: Broadcom BCM57412
• Ports: 2x 10GbE SFP+
• Form Factor: OCP NIC 3.0 mezzanine
• Speed: 10 Gbps per port
• Virtualization: SR-IOV
• OS Support: Windows Server, Linux, VMware ESXi

Use Cases

• Dual 10GbE Without PCIe: Add two 10GbE ports without consuming PCIe slots
• Redundant Connectivity: Active-active or active-passive NIC bonding
• Virtualization: SR-IOV for high-density VMware and KVM environments
• Storage Networking: iSCSI and NFS over 10GbE for SAN/NAS connectivity

Compatibility Notes

• Requires HPE ProLiant server with OCP NIC 3.0 mezzanine slot
• Compatible with 10GbE SFP+ DAC cables, AOC cables, and optical transceivers
• Supported on Windows Server, RHEL, Ubuntu, VMware ESXi
• HPE validated — optimized for ProLiant OCP 3.0 platforms

Frequently Asked Questions

What HPE servers support OCP NIC 3.0?

OCP NIC 3.0 is supported on select HPE ProLiant Gen10 Plus and Gen11 servers including the DL360, DL380, and DL560. Verify OCP NIC 3.0 slot availability with your specific server model.

Can I use SFP+ DAC cables with this adapter?

Yes — the 10GbE SFP+ ports support DAC (Direct Attach Copper) cables, AOC (Active Optical Cables), and standard SFP+ optical transceivers.

Does this NIC support SR-IOV?

Yes — the BCM57412 supports SR-IOV for hardware-level network virtualization in VMware, KVM, and Hyper-V environments.

Product Details

• Part Number: P26257-B21
• Manufacturer: HPE / Broadcom
• Model: BCM57412 OCP NIC 3.0
• Product Type: Dual-Port 10GbE OCP NIC 3.0

Whether you are adding dual 10GbE to an HPE ProLiant server without consuming PCIe slots, deploying SR-IOV for high-density virtualization, or building redundant network connectivity, the HPE P26257-B21 delivers the dual-port bandwidth, OCP efficiency, and HPE-validated reliability your server demands.