PCI-E Network Card Broadcom NetXtreme Quad-Port 1GbE PCIe (BCM5719)

Broadcom NetXtreme BCM5719-4P Quad-Port 1GbE PCIe Network Adapter

The Broadcom NetXtreme BCM5719-4P is a feature-rich Ethernet solution for servers, consolidating four independent Gigabit ports onto a single low-profile PCI Express card. Built around Broadcom's 13th-generation NetXtreme BCM5719 controller, it is designed for environments that demand high port density, network redundancy, and advanced virtualization support. It is the ideal adapter for servers serving multiple VLANs or requiring link aggregation across several connections.

Connectivity and Performance

The adapter provides four RJ-45 ports supporting 10/100/1000 Mb/s speeds per the IEEE 802.3ab standard over Category 5 cabling. Each port functions as a separate PCI Express function, enabling independent management and routing of every interface. The host interface is PCI Express revision 2.1 at x4 link width, and the card ships in a low-profile form factor (2.7 in. x 5.2 in.) suited to dense server chassis.

Virtualization and Traffic Acceleration

The BCM5719 supports 17 receive and 16 transmit queues with 17 MSI-X vectors, together with VMware NetQueue and Microsoft VMQ technologies to accelerate traffic in virtual machines. Offload technologies include Large Send, TCP segmentation, TCP/UDP/IP checksum offload, and Receive-Side Scaling (RSS), which reduce host CPU load and improve overall network throughput.

Efficiency and Additional Features

The card is Energy Efficient Ethernet compliant per the IEEE 802.3az-2010 standard to reduce power consumption, and includes a comprehensive set of hardware features for IEEE 1588 / 802.1AS-based time synchronization. The combination of four ports, energy efficiency, and broad virtualization support makes it a balanced solution for modern server infrastructure.