869570-001 HPE 2 Ports SFP28 10/25GBPS 621SFP28 PCI-E Network Adapter

Overview of HPE 869570-001 Ethernet 2-Port Network Adapter

The HPE 869570-001 SFP28 Network Adapter is a high-performance dual-port solution engineered for enterprise servers. Supporting both 10Gbps and 25Gbps speeds, it delivers secure, efficient, and scalable connectivity with advanced virtualization and storage features.

General Information

• Manufacturer: HPE
• Part Number: 869570-001
• Device Type: Ethernet Network Adapter
• Form Factor: Plug-in card (Full height / Stand-up)
• Bus Interface: PCI Express 3.0 x8

Core Technical Specifications

• Data Transfer Rate: 10Gbps and 25Gbps per port
• Line Rate: 25Gbps
• Bidirectional Throughput: Up to 100Gbps aggregate
• Number of Ports: 2

Connector & Processor

• Connector Type: SFP28 (supports optics or DAC cables)
• Network Processor: Cavium QL41401

Virtualization Support

SR-IOV

• Single Root I/O Virtualization for optimized VM performance

VMware NetQueue & Microsoft VMQ

• Enhances VM density and workload scalability

RDMA Support

• Remote Direct Memory Access over Converged Ethernet (RoCE v1/v2)
• iWARP protocol for low-latency transfers

Tunnel Offloads

• Optimized for VXLAN, NVGRE, and GENEVE
• Reduces CPU overhead in cloud environments

Efficiency Enhancements

• Receive Side Scaling (RSS)
• Receive Side Coalescing (RSC)
• Jumbo Frames up to 9KB

Storage Protocols

• iSCSI Extensions over RDMA (iSER)
• Microsoft SMB Direct support

Supported Servers

• Optimized for HPE ProLiant Gen9 and Gen10 servers
• Compatible with DL360, DL380, DL560, and ML350 models

Power Consumption

• Typical: 8.4W
• Maximum: 9.7W (some sources report up to 14.1W)

Security Features

• Digitally signed firmware ensures trusted updates
• Hardware Root of Trust for secure operations

HPE 869570-001 SFP28 10/25Gbps PCI-E Ethernet Adapter

The HPE 869570-001 SFP28 10/25Gbps 621SFP28 PCI-Express 3.0 x8 Ethernet 2 Ports Network Adapter represents a high-performance server connectivity solution engineered for modern enterprise data centers requiring scalable throughput, low latency communication, and advanced virtualization capabilities. This adapter is designed to integrate seamlessly into Hewlett Packard Enterprise server environments, enabling reliable high-speed network transmission across cloud infrastructures, virtualization platforms, and mission-critical workloads.

Built around PCI Express 3.0 x8 architecture, this adapter delivers enhanced data bandwidth efficiency, allowing servers to handle increasing network traffic demands while maintaining stable throughput. Its dual-port SFP28 interface supports both 10 Gigabit Ethernet and 25 Gigabit Ethernet speeds, making it a flexible solution for evolving network infrastructures where scalability and backward compatibility are essential.

Core Design Principles of the 621SFP28 Network Adapter

The design of the HPE 621SFP28 network adapter emphasizes modular scalability, energy efficiency, and high-density computing compatibility. It is engineered to support next-generation workloads in cloud computing environments, virtualization clusters, and high-performance storage networks. By utilizing SFP28 optical transceiver technology, the adapter enables efficient data transmission over fiber networks while minimizing latency and power consumption.

This adapter is particularly optimized for enterprise workloads that require consistent network responsiveness, including database clustering, virtualization management, real-time analytics, and distributed computing environments. The hardware architecture is structured to minimize CPU overhead through intelligent offloading mechanisms that enhance server efficiency.

PCI Express 3.0 x8 Bus Interface Performance Characteristics

The PCI Express 3.0 x8 interface plays a critical role in enabling high-bandwidth communication between the server motherboard and the network adapter. This interface ensures that the adapter can handle large-scale data transfers without bottlenecking system performance. The x8 lane configuration provides sufficient throughput capacity for dual-port 25GbE operations, ensuring consistent packet delivery rates under heavy network loads.

In enterprise environments where multiple virtual machines operate simultaneously, the PCIe 3.0 architecture ensures balanced data distribution across virtual and physical network layers. This contributes to improved workload isolation and predictable network behavior even under peak utilization conditions.

Efficiency Optimization Through Lane Aggregation

The x8 lane structure enables efficient aggregation of data streams, allowing simultaneous bidirectional communication without congestion. This design ensures that data packets from storage systems, application servers, and virtual machines are transmitted with minimal delay. The optimized lane utilization also contributes to reduced latency in distributed cloud environments.

SFP28 10/25Gbps Connectivity and Optical Transceiver Compatibility

The inclusion of SFP28 ports provides enhanced flexibility for organizations transitioning between 10GbE and 25GbE infrastructures. This dual-speed capability allows IT administrators to upgrade network performance without requiring complete hardware replacement, significantly reducing operational costs and infrastructure disruption.

10 Gigabit Ethernet and 25 Gigabit Ethernet Dual Mode Functionality

The adapter supports both 10GbE and 25GbE operation modes, making it suitable for mixed-speed network environments. In legacy systems, it functions seamlessly at 10GbE speeds, while in modernized infrastructures it delivers full 25GbE performance. This adaptability ensures long-term investment protection for enterprise deployments.

The transition between speed modes is managed automatically based on connected transceivers and network switches, ensuring smooth interoperability within heterogeneous networking environments.

Advanced Optical Signal Integrity and Transmission Stability

The SFP28 interface ensures high signal integrity across fiber connections, reducing packet loss and improving transmission reliability. This is essential in environments where large-scale data replication, backup processes, and real-time analytics are performed across distributed systems.

Enhanced error correction and signal stabilization mechanisms contribute to consistent throughput even in electrically noisy data center environments, where multiple high-density servers operate in close proximity.

Compatibility with Modern Data Center Fiber Infrastructure

The adapter is engineered to integrate with modern fiber optic cabling systems commonly deployed in enterprise and hyperscale data centers. Its compatibility with standard SFP28 modules allows organizations to leverage existing optical infrastructure while upgrading performance capabilities.

Enterprise Network Optimization

The HPE 869570-001 adapter is designed to support advanced virtualization technologies that are essential for modern IT infrastructures. It enables efficient traffic segmentation, workload isolation, and virtual machine networking optimization through hardware-level acceleration.

Virtual Machine Density and Traffic Segmentation Efficiency

In virtualized environments, multiple virtual machines share the same physical network adapter. The dual-port design of this adapter allows administrators to distribute traffic efficiently across different virtual networks, reducing congestion and improving application responsiveness.

Traffic segmentation ensures that critical workloads such as database replication or application hosting remain unaffected by lower-priority network traffic, improving overall system stability.

SR-IOV and Hardware-Level Virtualization Acceleration

Single Root Input/Output Virtualization (SR-IOV) support enables the adapter to allocate virtual functions directly to virtual machines, bypassing hypervisor overhead. This results in significantly reduced latency and improved packet processing efficiency.

By enabling direct hardware access, SR-IOV enhances performance for cloud environments, virtualization clusters, and containerized application deployments.

Reduced CPU Overhead in Virtualized Infrastructure

The offloading capabilities embedded within the adapter reduce CPU utilization by handling network processing tasks at the hardware level. This allows server processors to focus on application-level workloads rather than network packet management, improving overall computational efficiency.

Energy Efficiency and Thermal Optimization Design

Energy efficiency is a critical factor in modern data centers, and the HPE 621SFP28 adapter is designed with optimized power consumption profiles. It balances high performance with reduced energy usage, contributing to lower operational costs and improved thermal management.

Thermal Control and Heat Dissipation Efficiency

The physical design of the adapter supports effective heat dissipation, ensuring stable performance even under continuous heavy workloads. Efficient thermal control reduces the risk of overheating and extends hardware lifespan.

Proper thermal balance is essential in high-density server environments where multiple network adapters operate simultaneously within confined chassis spaces.

Impact on Long-Term Infrastructure Reliability

Reduced thermal stress contributes to improved long-term reliability of both the network adapter and the server system. This ensures consistent uptime and minimizes maintenance requirements in enterprise environments.

Enterprise Compatibility and Server Integration

The HPE 869570-001 adapter is designed for seamless integration into compatible HPE server platforms. It supports standardized driver frameworks and firmware management systems, ensuring ease of deployment and maintenance within enterprise IT ecosystems.

Server Platform Interoperability

The adapter is compatible with a wide range of HPE server architectures, enabling flexible deployment across blade servers, rack-mounted systems, and converged infrastructure environments. This interoperability simplifies IT infrastructure planning and expansion.

Enterprise Security and Network Protection Features

Security is a fundamental component of enterprise networking, and this adapter includes hardware-based mechanisms to support secure data transmission. These features help protect against unauthorized access, packet interception, and network-based vulnerabilities.