HPE 1Gb 4-Port 331T PCIe 2.0 x4 Ethernet Adapter

Overview

The HPE 647594-B21 is a 4-port 1Gb Ethernet adapter designed to enhance your server’s network capacity by providing four gigabit-speed connections through a PCIe 2.0 x4 interface. With a total throughput of up to 8 Gb, it supports demanding network environments such as virtualization, network segmentation, and heavy traffic handling without causing bottlenecks. Its Broadcom BCM5719 chipset enables advanced networking features that improve performance and reduce CPU load.

Key features

• Four independent 1 Gb Ethernet ports to expand network connectivity and bandwidth
• Support for jumbo frames and VLAN tagging to optimize data flow and network segmentation
• Large send offload capability reduces CPU overhead during high network traffic
• Energy-efficient single-chip design minimizes power consumption and heat generation
• Includes both full-height and low-profile brackets for flexible installation in various server cases
• Compatible with 10/100/1000 Mbps networks, ensuring broad compatibility with existing infrastructure
• Reliable operation within a wide temperature range from 32 to 131 degrees Fahrenheit

Key specs

• Network ports: 4 x 1 Gb Ethernet
• Interface: PCIe 2.0 x4
• Chipset: Broadcom BCM5719
• Maximum aggregate throughput: 8 Gb
• Supported network speeds: 10/100/1000 Mbps
• Operating temperature: 32 to 131 °F (0 to 55 °C)
• Form factor: Full-height and low-profile brackets included

Connectivity and compatibility

This adapter fits into a PCIe 2.0 x4 slot, making it compatible with a wide range of server motherboards that support this interface. It works seamlessly with standard Ethernet networks at 10, 100, and 1000 Mbps speeds, allowing integration into existing data center or enterprise environments without requiring additional configuration. The inclusion of both full-height and low-profile brackets ensures it can be installed in various server chassis, from rack-mounted units to compact cases.

Performance and reliability

Equipped with the Broadcom BCM5719 chipset, the adapter delivers stable and consistent network performance even under heavy workloads. Features like jumbo frame support and VLAN tagging help optimize network traffic, while large send offload reduces the processing burden on your server’s CPU. Its low power consumption and efficient design contribute to system reliability by minimizing heat output and energy use, which is critical in dense server environments.

Ideal uses and environments

This Ethernet adapter is well suited for IT professionals looking to upgrade or expand server network ports in data centers, virtualization hosts, or environments with high network traffic demands. It fits well in setups requiring multiple gigabit connections for segmentation or redundancy. Its robust feature set and compatibility make it a practical choice for businesses aiming to improve network throughput and efficiency without extensive hardware changes.