Lenovo Broadcom NetXtreme 00YK551 4-Port 1 GbE PCIe | Ethernet Adapter

Add four wired network connections from a single PCIe adapter and keep rack systems ready for segmented traffic, management access, and service separation. The Lenovo Broadcom NetXtreme 00YK551 is built around 1 GbE copper networking with RJ45 interfaces, giving infrastructure teams a straightforward way to increase port density without moving to higher-cost uplink designs. For environments that still depend on 1 GbE switching, this adapter fits naturally into server refreshes, spare-part planning, and mixed-generation deployments. Four ports on one card reduce slot pressure and simplify cabling compared with single-port alternatives. That matters in systems where expansion slots are limited and predictable network access is more valuable than feature-heavy overprovisioning. As a Lenovo DCG sourcing part, it is positioned for enterprise hardware workflows where compatibility, procurement consistency, and lifecycle planning are part of the buying decision. The Broadcom NetXtreme platform is a familiar choice for administrators who want stable copper Ethernet connectivity across virtualization hosts, application servers, and general-purpose infrastructure nodes.