Lenovo NetXtreme BCM5719 Quad-Port 1GbE RJ45 PCIe Ethernet Adapter
Upgrade your enterprise server, homelab, or custom firewall with the reliable Lenovo NetXtreme BCM5719 Quad-Port 1GbE Ethernet Adapter. Built around the powerful Broadcom BCM5719 controller, this network interface card delivers four independent 10/100/1000BASE-T copper ports using standard RJ45 connectors. Perfect for virtualization environments, link aggregation, or network segmenting, this adapter offers exceptional throughput and hardware-level offloading for TCP, IP, and UDP checksum processing.
Key Features & Specifications
- Brand: Lenovo
- Model / MPN: NetXtreme BCM5719 Gigabit Ethernet PCIe
- Network Controller: Broadcom BCM5719
- Port Count: 4 Ports
- Port Speed: 1 GbE (10/100/1000 Mbps)
- Connector Type: RJ45
- Media Type: Copper
- Host Interface: PCIe 2.0 x4
- Form Factor: PCIe Full Height
- Offload Capabilities: TCP, IP, and UDP checksum offload
What's Included
- Lenovo NetXtreme BCM5719 Quad-Port 1GbE PCIe Network Card (Full-Height Bracket Attached)
- Note: Cables, drivers, software, mounting screws, and original retail packaging are not included.
Compatible Systems
Hardware Compatibility: Compatible with Lenovo ThinkSystem, ThinkServer, and standard x86 servers or workstations equipped with an available full-height PCIe x4, x8, or x16 slot.
Operating System Support: Native or vendor-driver support across VMware ESXi, Proxmox VE, Microsoft Windows Server, Red Hat Enterprise Linux (RHEL), Ubuntu Server, FreeBSD, and pfSense/OPNsense.
Compatibility Gotcha: Includes a full-height PCIe bracket only; not suitable for low-profile / small form factor (SFF) chassis without changing the bracket.
Ideal For
- Homelab virtualization hosts (Proxmox VE, ESXi, Hyper-V) requiring individual NIC assignment, management isolation, or vMotion interfaces.
- Dedicated custom router and firewall builds (pfSense, OPNsense) utilizing WAN and multiple segmented LAN interfaces.
- Enterprise server networking requiring link aggregation (802.3ad LACP), NIC teaming, or failover redundancy.
- Workstation and server maintenance, replacement, or port expansion.
Returns & Policy
Returns are accepted only if the item received does not match the listing description.
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