HPE817708-B21

FlexibleLOM Dual-Port 10/25 GbESFP28Network Adapter

The HPE817708-B21 is a dual-port SFP28Network Adapter designed to deliver high-performance 10/25 GbE connectivity for HPEProLiant servers. Featuring two optical SFP28 ports and a PCIe Gen3 host interface, it offers seamless integration into existing infrastructure while enabling fast and reliable networking. Optimized for virtualization, storage, and enterprise applications, this adapter supports bandwidth-intensive workloads and offers future-proof scalability. Ideal for data centers and business-critical environments, the 817708-B21 helps reduce latency and maintain high throughput×even with burst traffic and overlay network demands.

Features

This FlexibleLOMNetwork Adapter connects directly to PCIe Gen3 slots (typically x4) and supports 10 GbE and 25 GbE data rates, switching automatically between speeds. It enhances network efficiency by supporting advanced features like RoCE (RDMA over Converged Ethernet) and tunnel offloads (VXLAN/NVGRE), minimizing latency and CPU overhead. This makes it well-suited for virtualized environments, live migrations, and high-frequency application traffic. Compact and low-profile, it fits into space-limited server chassis and integrates effortlessly with ProLiant server models. Additionally, this adapter is compatible with broad operating systems and virtualization platforms, providing robust connectivity for various enterprise and cloud workloads without compromising on performance.

Advanced Options

Designed to deliver reliable connectivity and consistent performance, this dual-port adapter ensures stable transmission at both 10 GbE and 25 GbE speeds. Features such as RoCE and tunnel offload lower CPU utilization and reduce latency×key for virtual machine environments,

Product Key Features

• Dual SFP28 ports supporting 10/25 GbE
  

• PCI Express Gen3 (x4) FlexibleLOM interface
  

• Auto-negotiation between 10GbE and 25GbE
  

• RoCE and tunnel offload support (VXLAN/NVGRE)
  

• Low-profile form factor for dense server deployment
  

• High throughput with low latency

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Reliability & Performance

live migrations, and storage traffic. The FlexibleLOM form factor and low-profile design mean minimal impact on internal airflow and ease of installation in HPEProLiant servers. Manufactured to industrial-grade standards, the adapter provides efficient thermal performance and consistent operation under sustained load. Auto-negotiation between speeds adds flexibility, while CE compliance and eco-friendly assembly support enterprise deployment standards.

Key Features :

• Dual SFP28optical ports supporting 10/25 GbE

• PCIe Gen3 x4 FlexibleLOM interface

• Auto-negotiation between 10GbE and 25GbE speeds

• RDMA over Converged Ethernet (RoCE) support

• VXLAN/NVGRE tunnel offload capabilities

• Low-profile, space-saving design

Specification	Details
Model Number	817708-B21
Product Type	Dual-Port 10/25 GbE SFP28Network Adapter
Port Configuration	2 × SFP28
Supported Speeds	10 Gb/s and 25 Gb/s (auto-negotiation)
Bus Interface	PCI Express Gen3 ×4 FlexibleLOM
Offload Features	RoCE, VXLAN, NVGRE tunnel offload
Connector Type	SFP28optical
Form Factor	FlexibleLOM, low-profile plug-in
Compatibility	HPE
Power Consumption	Approx. low power (typical ~5-10 W)
Card Height	Low-profile
Weight	≈2 lbs (≈0.9 kg)
Compliance	CE standards