817750-B21 HPE 640SFP28 Ethernet 10/25GB 2 Port Network Adapters

HPE 817750-B21 Ethernet 10/25Gb 2-Port Network Adapter Overview

High-Performance Networking Solution for Enterprise Servers

Product Identification and Key Details

• Manufacturer: HPE
• Part Number / SKU: 817750-B21
• Product Category: Dual-Port Network Adapter
• Interface Type: High-speed Ethernet expansion card

Advanced Technical Specifications

Hardware Design and Interface Architecture

Form Factor and Bus Compatibility

• Low-profile plug-in card design for optimized server space usage
• PCI Express 3.0 support ensuring fast and stable connectivity
• Compatible bus configurations: PCIe 3.0 x4 / x8 lanes

Network Interface Capabilities

Port Configuration and Connectivity

• Dual SFP28 ports supporting 25 Gigabit Ethernet
• Wired connectivity for stable and low-latency communication
• Supports both 10GbE and 25GbE data link protocols

Data Transfer Performance

• Maximum data rate up to 25 Gbps per port
• Aggregated bidirectional throughput reaching up to 100 Gbps
• 50 Gbps bandwidth capability per individual port

Performance and Efficiency Features

Optimized Throughput and Scalability

• Designed for high-density virtualized environments
• Enhanced support for jumbo frames up to 9.6 KB
• Improved network efficiency with low CPU overhead processing

Advanced Offloading Technologies

• TCP/IP, UDP/IP checksum offloading for reduced processor load
• Large Send Offload (LSO) and TCP Segmentation Offload (TSO)
• Receive Side Scaling (RSS) for balanced traffic distribution
• MSI-X support for efficient interrupt handling

Networking Protocols and Standards

Supported Industry Standards

• IEEE 802.1Q VLAN tagging and traffic segmentation
• IEEE 802.3ad Link Aggregation Control Protocol (LACP)
• IEEE 802.3x full-duplex flow control
• IEEE 802.1ab Link Layer Discovery Protocol (LLDP)
• IEEE 1588v2 precision time synchronization

Virtualization and Data Center Technologies

• VXLAN support for scalable network virtualization
• NVGRE for advanced overlay networking
• RDMA over Converged Ethernet (RoCE and RoCE v2)
• IPv4 and IPv6 dual-stack compatibility

Smart Features and Management Capabilities

Network Optimization and Control

• Quality of Service (QoS) traffic prioritization
• VLAN tagging for segmented network architecture
• PXE boot support for network-based system deployment
• SNMP remote monitoring and management

Enhanced Reliability Features

• Link/activity LED indicators for real-time status monitoring
• Full duplex communication for maximum efficiency
• Jumbo frame handling for optimized data flow

Compatibility and System Integration

Supported HPE Server Platforms

ProLiant DL Series Compatibility

• HPE ProLiant DL120 Gen9 (Base, Entry)
• HPE ProLiant DL160 Gen9 (Performance, Entry, Base)
• HPE ProLiant DL360 Gen9 (All variants including Performance and Entry)
• HPE ProLiant DL380 Gen9 (High Performance, Base, Entry)
• HPE ProLiant DL560 and DL580 Gen9 series

Additional Server Support

• HPE Apollo 4200 Gen9, 4510 Gen9, 4530 Gen9
• HPE XL250a Gen9 Accelerator Tray systems

Processor and Controller Details

Integrated Networking Engine

• Powered by Mellanox ConnectX-4 Lx architecture
• Optimized for high-speed enterprise networking workloads
• Designed for virtualization and cloud-scale environments

Expansion and Connectivity Interfaces

SFP28 Port Configuration

• 2 × 25Gb Ethernet SFP28 interfaces
• Flexible fiber connectivity for data center scalability
• High-density networking support for modern infrastructures

Use Cases and Deployment Scenarios

Enterprise and Data Center Applications

• High-performance cloud computing environments
• Virtualized server clusters and hyper-converged infrastructure
• Big data processing and analytics workloads
• Storage networking and NVMe over Fabrics setups

Key Advantages for IT Infrastructure

• Reduced latency for mission-critical applications
• Improved bandwidth utilization in large-scale deployments
• Enhanced scalability for growing enterprise networks

HPE 817750-B21 10/25Gb 2-Port 640SFP28 Network Adapters

The HPE 817750-B21 Ethernet 10/25Gb 2-Port 640SFP28 Network Adapter represents a highly advanced class of data center networking hardware engineered to deliver superior throughput, low latency, and exceptional reliability. Designed to meet the evolving needs of enterprise IT environments, this adapter belongs to a category of high-performance network interface cards that support both 10 Gigabit and 25 Gigabit Ethernet speeds. It is built to empower modern workloads including virtualization, cloud computing, big data analytics, and high-performance computing infrastructures where consistent data flow and minimal bottlenecks are critical.

This category of network adapters is widely adopted across enterprise-grade servers due to its flexible connectivity options, efficient bandwidth utilization, and compatibility with industry-standard SFP28 transceivers. By offering dual ports, the adapter enhances redundancy and load balancing capabilities, allowing businesses to optimize network resilience while maintaining high-speed connectivity. These features make it an ideal solution for organizations seeking scalable and future-proof networking infrastructure.

Key Features and Architectural Advantages

Dual-Port SFP28 Connectivity for High Throughput

The dual-port configuration enables simultaneous data transmission across two independent channels, significantly increasing overall bandwidth availability. Each port supports both 10GbE and 25GbE speeds, allowing seamless integration into existing network infrastructures while providing an upgrade path to higher speeds. This flexibility ensures that enterprises can transition gradually without requiring immediate large-scale infrastructure overhauls.

Support for Advanced Ethernet Standards

The adapter is engineered to comply with the latest Ethernet standards, ensuring compatibility with modern networking protocols and devices. It supports features such as Data Center Bridging, which enhances traffic management and prioritization in converged network environments. This ensures consistent performance for latency-sensitive applications such as real-time analytics and financial trading systems.

PCIe Interface for Maximum Data Efficiency

The HPE 640SFP28 adapter leverages a high-speed PCI Express interface to maximize data transfer rates between the network adapter and the server motherboard. This ensures that the network performance is not limited by internal data pathways, allowing full utilization of the available bandwidth. The efficient communication between components contributes to reduced latency and improved application responsiveness.

Performance Optimization in Enterprise Environments

Low Latency Data Transmission

Low latency is a critical factor in modern networking, particularly in environments where real-time processing is essential. The HPE 817750-B21 adapter minimizes delays through optimized hardware design and advanced packet processing capabilities. This ensures faster data delivery and improved performance for applications such as virtual desktop infrastructure and database management systems.

High Packet Processing Capability

The adapter is capable of handling a large volume of packets per second, making it suitable for high-density data center deployments. This capability ensures smooth network operations even during peak traffic conditions. Enterprises benefit from consistent performance without experiencing degradation due to network congestion.

Efficient Bandwidth Utilization

With support for both 10Gb and 25Gb speeds, the adapter allows organizations to optimize bandwidth usage based on workload requirements. This dynamic adaptability ensures that network resources are utilized efficiently, reducing unnecessary overhead while maintaining high throughput.

Virtualization and Cloud Integration

Enhanced Virtual Machine Networking

The HPE 640SFP28 adapter is optimized for virtualized environments, providing advanced features that improve the performance of virtual machines. It supports technologies such as Single Root I/O Virtualization, which enables multiple virtual machines to share a single physical network adapter while maintaining isolation and performance efficiency.

Seamless Cloud Infrastructure Support

In cloud computing environments, network performance plays a crucial role in ensuring service reliability. This adapter supports high-speed data transfer required for cloud workloads, enabling faster communication between virtual instances and storage systems. Its scalability makes it suitable for both private and hybrid cloud deployments.

Workload Offloading Capabilities

To reduce CPU overhead, the adapter includes hardware offloading features that handle tasks such as checksum calculation and segmentation. This allows the server processor to focus on application workloads rather than network processing, resulting in improved overall system efficiency.

Reliability and Redundancy Features

Network Failover Support

The dual-port configuration provides built-in redundancy, ensuring that network connectivity remains uninterrupted in case of port failure. This is essential for mission-critical applications where downtime can result in significant operational disruptions.

Error Detection and Correction Mechanisms

Advanced error detection technologies are integrated into the adapter to ensure data integrity during transmission. These mechanisms help identify and correct transmission errors, maintaining consistent network performance and reliability.

Robust Thermal Design

The adapter is designed with efficient thermal management to maintain optimal operating temperatures even under heavy workloads. This ensures long-term reliability and reduces the risk of hardware failure due to overheating.

Scalability and Future-Proof Networking

Support for Next-Generation Data Centers

As data centers continue to evolve, the demand for higher bandwidth and faster connectivity grows. The HPE 817750-B21 adapter is designed to support future networking requirements, making it a strategic investment for organizations planning long-term infrastructure upgrades.

Flexible Deployment Options

The adapter can be deployed in a wide range of server configurations, providing flexibility for different enterprise needs. Whether used in rack-mounted servers or blade systems, it delivers consistent performance across various deployment scenarios.

Compatibility with SFP28 Transceivers

The use of SFP28 transceivers allows organizations to choose from a variety of connectivity options, including short-range and long-range fiber connections. This flexibility ensures that the adapter can be integrated into diverse networking environments.

Security Enhancements in Network Adapters

Secure Data Transmission

Security is a critical aspect of modern networking, and the HPE 640SFP28 adapter incorporates features that protect data during transmission. These include encryption support and secure boot capabilities, ensuring that network communications remain protected from unauthorized access.

Isolation in Virtualized Environments

The adapter ensures secure communication between virtual machines by maintaining strict isolation between network channels. This prevents data leakage and enhances overall system security in multi-tenant environments.

Firmware Integrity Protection

Built-in firmware security features protect the adapter from unauthorized modifications. This ensures that the device operates with trusted software, reducing the risk of vulnerabilities.

Energy Efficiency and Cost Optimization

Reduced Power Consumption

The adapter is designed to deliver high performance while minimizing power usage. This contributes to lower operational costs and supports environmentally sustainable data center practices.

Optimized Resource Utilization

By offloading network processing tasks from the CPU, the adapter improves overall system efficiency. This allows organizations to maximize the performance of their existing hardware without additional investments.

Long-Term Investment Value

With its support for both 10Gb and 25Gb speeds, the adapter provides a future-proof solution that can adapt to changing network requirements. This reduces the need for frequent hardware upgrades, resulting in significant cost savings over time.

Application Use Cases Across Industries

Enterprise Data Centers

In enterprise data centers, the HPE 817750-B21 adapter is used to support high-speed communication between servers, storage systems, and networking equipment. Its reliability and performance make it suitable for handling large-scale workloads.

Media and Entertainment

The media industry requires high-speed data transfer for video editing, rendering, and streaming. The adapter’s high throughput ensures smooth workflows and faster content delivery.