HPE 665240-B21

Overview

The HPE 665240-B21 is a 1Gb Ethernet adapter designed to enhance network performance for HPE ProLiant servers. Featuring four Ethernet ports capable of delivering consistent 1Gbps speeds, it connects through a PCI Express 2.1 x4 interface to ensure efficient data transfer. Built around Intel’s reliable I350 Ethernet Controller, this adapter supports advanced networking features and virtualization, making it a practical choice for IT environments that demand stable and scalable connectivity.

Key features

• Four 1Gb Ethernet ports provide dependable and simultaneous network connections for multiple devices or services.
• PCI Express 2.1 x4 interface enables smooth communication with server hardware, minimizing bottlenecks during data transfer.
• FlexibleLOM form factor allows easy installation and future scalability within HPE Gen8 rack and scalable servers.
• Advanced offloading features such as Large Send Offload and TCP checksum reduce CPU workload, improving overall system efficiency.
• Supports VLAN tagging and Jumbo frames to optimize network traffic management and increase throughput.
• Virtualization support with VMware NetQueue and Microsoft VMQ helps distribute network traffic across multiple processors for better performance in virtualized environments.
• Energy Efficient Ethernet technology lowers power consumption without compromising network responsiveness.
• Wake-on-LAN capability enables remote server management and power control.
• IEEE 1588 precision time stamping ensures accurate synchronization, critical for time-sensitive applications.

Key specs

• Ethernet speed: 1 Gigabit per second (Gbps) per port
• Number of ports: 4
• Interface: PCI Express 2.1 x4
• Controller: Intel I350 Ethernet Controller
• Form factor: FlexibleLOM
• Supported standards: IEEE 1588, Energy Efficient Ethernet
• Virtualization support: VMware NetQueue, Microsoft VMQ

Connectivity and compatibility

This adapter is designed specifically for HPE ProLiant Gen8 rack and scalable servers, ensuring seamless integration and compatibility. The FlexibleLOM form factor allows it to fit into existing server slots while leaving room for future upgrades. Its four 1Gb Ethernet ports support standard network connections, making it suitable for a variety of network infrastructures.

Performance and reliability

With Intel’s I350 Ethernet Controller at its core, the adapter delivers stable and consistent network performance. Offloading features reduce CPU load, which helps maintain server responsiveness even under heavy network traffic. The inclusion of IEEE 1588 time synchronization supports environments where precise timing is essential, such as financial services or telecommunications.

Ideal uses and environments

This adapter fits well in data centers and enterprise IT setups where reliable 1Gb Ethernet connectivity is required across multiple ports. It is particularly suited for virtualized server environments that benefit from traffic distribution features like VMware NetQueue and Microsoft VMQ. IT professionals managing HPE ProLiant servers will find this adapter a strong choice for enhancing network throughput while maintaining energy efficiency and remote management capabilities.

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