717491-B21 HPE 10GB 2 Port 570flr Sfp Adapter Ethernet

Enterprise-Grade 10GbE Networking Adapter Ecosystem

The HPE 717491-B21 Ethernet 10Gb 2-Port 570FLR-SFP Adapter belongs to a high-performance category of enterprise network interface cards (NICs) designed for modern data centers that demand ultra-fast, low-latency, and highly reliable connectivity. This category represents a critical component in server networking infrastructure, enabling scalable bandwidth expansion and efficient workload distribution across virtualization, cloud computing, and storage-intensive environments. The adapter is built around dual-port 10 Gigabit Ethernet capability, which allows simultaneous high-speed data transmission across multiple network paths, reducing bottlenecks and improving redundancy.

As part of the HPE FlexibleLOM (FLR) adapter family, this device is engineered to integrate seamlessly with HPE ProLiant servers, providing modularity and upgrade flexibility without occupying traditional PCIe slots. This category of adapters is particularly important in environments where server density and airflow optimization are crucial, such as enterprise data centers, colocation facilities, and high-performance computing clusters.

HPE 570FLR-SFP Adapter Architecture

The HPE 570FLR-SFP adapter category is based on the FlexibleLOM architecture, which is a proprietary HPE design that allows network adapters to be installed in a dedicated LOM slot rather than standard PCI Express slots. This design improves system flexibility by freeing up PCIe lanes for other expansion cards such as GPUs, storage controllers, or accelerator cards. The HPE 717491-B21 adapter is specifically optimized for rack-mounted ProLiant servers, ensuring consistent airflow and thermal efficiency.

The physical architecture is compact yet powerful, incorporating dual SFP+ ports that support fiber optic or direct attach copper (DAC) cables. This ensures compatibility with a wide range of enterprise networking environments, from short-range intra-rack connections to long-distance fiber backbone deployments.

Dual-Port 10GbE

A defining feature of this category is the dual-port configuration. Each port operates independently at 10Gbps, allowing aggregated throughput of up to 20Gbps in full duplex mode. This design enables load balancing, failover redundancy, and advanced traffic segmentation. In mission-critical environments, this ensures continuous network availability even in the event of a single-port failure.

The dual-port structure also supports advanced teaming configurations, where both ports can be combined into a single logical interface to increase throughput or configured separately for different network segments such as storage, management, or application traffic.

High-Performance Networking Capabilities

The HPE 717491-B21 adapter category is optimized for 10 Gigabit Ethernet performance, which is essential for modern enterprise workloads. Applications such as virtualization, database replication, real-time analytics, and cloud service delivery require consistent high-bandwidth communication. This adapter ensures minimal packet loss and low latency through hardware-based offloading techniques that reduce CPU overhead.

By offloading tasks such as TCP segmentation, checksum calculations, and interrupt moderation, the adapter significantly improves server efficiency. This allows CPU resources to be dedicated to application processing rather than network handling.

Server Integration Platform

The HPE 717491-B21 Ethernet 10Gb 2-Port 570FLR-SFP Adapter is designed specifically for integration with HPE ProLiant server platforms. It is compatible with a wide range of rack and tower servers that support FlexibleLOM expansion. This ensures seamless deployment in enterprise environments that rely on standardized hardware ecosystems.

Compatibility is a key factor in this category, as enterprises often deploy hundreds or thousands of servers. Standardized adapter design reduces configuration complexity and ensures consistent network behavior across all nodes in the infrastructure.

SFP+ Connectivity and Optical Networking Support

One of the key strengths of the HPE 570FLR-SFP adapter category is its support for SFP+ transceivers. This allows administrators to choose between fiber optic modules and copper-based DAC cables depending on network design requirements. Fiber optics provide long-distance, high-speed connectivity ideal for inter-rack or inter-building links, while DAC cables are cost-effective for short-range connections within data centers.

Virtual Network Segmentation

VLAN tagging support allows segmentation of network traffic into isolated virtual networks. This is essential in multi-tenant environments where security and performance isolation are required. The HPE 717491-B21 adapter category supports advanced VLAN configurations that integrate seamlessly with enterprise switches and software-defined networking (SDN) platforms.

Data Center Reliability and Performance Optimization

The adapter category incorporates multiple hardware offloading engines that improve server efficiency. These include checksum offload, large send offload (LSO), and receive-side scaling (RSS). By transferring these tasks from CPU to NIC hardware, overall system performance is significantly enhanced, especially under heavy network load conditions.

High Availability and Redundancy

Enterprise environments require continuous uptime, and the dual-port design of the HPE 570FLR-SFP adapter category ensures network redundancy. In the event of a port failure, traffic is automatically rerouted through the secondary port, preventing service disruption. This makes it suitable for mission-critical applications where downtime is not acceptable.

Secure Processing

Security is integrated into the hardware layer of the adapter category. Features such as secure boot support and firmware authentication ensure that only trusted firmware runs on the device. This prevents unauthorized modifications and reduces the risk of network-based attacks targeting NIC-level vulnerabilities.

Cloud Infrastructure Deployment

The HPE 717491-B21 adapter category is widely used in cloud data centers where high-speed, scalable networking is essential. It supports distributed computing models where workloads are dynamically allocated across multiple servers, requiring fast and reliable network communication.

Quality of Service (QoS)

Quality of Service features allow prioritization of network traffic based on application requirements. The adapter supports QoS tagging, ensuring that critical workloads such as database transactions receive higher priority compared to background processes.

Comparative Enterprise NIC

Within the broader category of enterprise 10GbE adapters, the HPE 717491-B21 Ethernet 10Gb 2-Port 570FLR-SFP adapter stands out due to its FlexibleLOM integration, dual-port architecture, and deep optimization for HPE ProLiant servers. Compared to standard PCIe-based NICs, it offers better system integration, improved airflow management, and reduced slot consumption.

Its category positioning emphasizes reliability, scalability, and enterprise-grade performance rather than consumer-level networking capabilities. This makes it a preferred choice for IT infrastructures that prioritize stability and long-term deployment consistency.

High-Density Data Center

In high-density environments, space and thermal efficiency are critical considerations. The HPE 570FLR-SFP adapter category is designed to minimize physical footprint while maximizing network output. Its integration into FlexibleLOM slots allows better airflow management, reducing heat buildup and improving overall server longevity.

This category is especially relevant in hyperscale environments where thousands of servers operate simultaneously. Efficient networking hardware reduces operational costs and improves energy efficiency across the entire infrastructure.