The LENOVO ThinkSystem Broadcom 5719 1GbE RJ45 4-port OCP Ethernet Adapter is a high-performance network interface card designed specifically for Lenovo ThinkSystem servers featuring an OCP 3.0 small form factor. Powered by the Broadcom BCM5719 NetXtreme controller, this adapter provides reliable and full line-rate Gigabit Ethernet connectivity across four RJ-45 ports supporting 10/100/1000Base-T speeds over Cat5e/Cat6 cabling.

This advanced OCP mezzanine card integrates essential networking features such as IEEE 802.1Q VLAN tagging, jumbo frame support, PXE boot, and software-initiated iSCSI boot capabilities to enhance server deployment and network boot scenarios. It also supports the IEEE 802.3az Energy Efficient Ethernet standard and precision timing protocols (IEEE 1588/802.1AS), making it energy-aware and time-synchronized for sensitive environments.

Virtualization performance is optimized via VMware NetQueue and Microsoft VMQ support, alongside NIC teaming and SNMP MIB II statistics monitoring, ensuring robust networking even in complex virtual server infrastructures. The adapter is compatible with Windows and Linux operating systems with standard Broadcom drivers and Lenovo firmware support.

Ideal for integration into supported Lenovo ThinkSystem servers with OCP 3.0 slots, this adapter enhances server network capabilities with low latency, reliable throughput, and advanced management features. The product ships as a small form factor mezzanine card, referenced by Lenovo part number 4XC7A08235.

Key Features:

• Broadcom BCM5719 NetXtreme chipset ensures consistent 1GbE performance


• Four RJ-45 ports supporting 10/100/1000Base-T connectivity


• OCP 3.0 small form factor designed for Lenovo ThinkSystem servers


• VLAN, jumbo frames, PXE boot, and iSCSI boot support


• Energy-efficient Ethernet (IEEE 802.3az) compliance


• Precision Time Protocol support (IEEE 1588/802.1AS)


• Virtualization optimizations: VMware NetQueue, Microsoft VMQ


• NIC teaming and SNMP MIB II for advanced network management


• On-chip temperature monitoring with Lenovo driver and firmware support