Network adapter Dell Broadcom 5719 QP 1Gb PCIe — dual-port 1 Gbps, PCIe x4

The Network adapter Dell Broadcom 5719 QP 1Gb PCIe — dual-port 1 Gbps, PCIe x4 is a server- and workstation-grade Gigabit Ethernet controller that provides two RJ45 1 Gbps ports over a PCI Express x4 interface. Designed by Dell with Broadcom silicon, this card expands wired LAN capacity, supports standard Ethernet connectivity and common offload features, and fits systems that accept a PCIe x4 (or larger) network card. The adapter is suitable for adding physical network interfaces for general-purpose networking, virtualization hosts, and redundancy or link aggregation configurations.

Advantages

This dual-port network adapter offers two independent 1 Gbps RJ45 interfaces, enabling increased port density and flexible network segmentation. Using a PCIe x4 interface, the card delivers sustained throughput with low CPU overhead thanks to Broadcom offload capabilities. The Dell-branded module is built to server standards for durability and compatibility with common operating systems and driver ecosystems. Its RJ45 connectors support standard copper Ethernet cabling, simplifying installation into existing infrastructure.

Suitable for

• Expanding wired LAN ports on servers and workstations
• Virtualization hosts requiring multiple physical NICs
• Network redundancy and link aggregation (LACP)
• Small-to-medium business network upgrades using Gigabit Ethernet

Key specifications

• Model: Dell Broadcom 5719 QP 1Gb PCIe (MPN: 540-BBHB-RFB)
• Interface: PCI Express x4 (backwards compatible with x8/x16 slots)
• Ports: 2 × RJ45, 1 Gbps each
• Throughput: 1 Gbps per port (full duplex)
• Compatibility: Standard Ethernet, Broadcom driver support for major OSes

How to use

Power down the host system and unplug it before installing the card. Insert the adapter into an available PCIe x4 (or larger) slot and secure it to the chassis with the retention screw. Connect standard Cat5e/Cat6 Ethernet cables to the RJ45 ports and to the network switch or patch panel. Power on the system and install the appropriate Dell/Broadcom drivers for your operating system if they are not automatically detected. Configure IP addresses, VLANs, link aggregation, or other network settings through your OS or management tools according to your network design.

Usage recommendations

For reliable Gigabit performance, use Cat5e or Cat6 cabling and verify driver compatibility with your server OS and hypervisor. When deploying for virtualization or redundancy, configure link aggregation or NIC teaming on both the host and switch sides. Keep firmware and drivers up to date using Dell support resources to ensure stability and security.