Expand server networking with a dual-port copper adapter built for environments that depend on stable, predictable Ethernet. The AddOn N2XX-ABPCI01-M3-AO delivers two RJ-45 ports at 10/100/1000 Mbps and installs through a PCI Express 2.0 x4 interface, making it a practical fit for servers that need additional network paths, management separation, or simple port redundancy. The Intel 82576 chipset is a familiar choice in enterprise networking, which helps reduce qualification friction when matching existing Cisco-oriented infrastructure. As a plug-in card for server use, this adapter is well suited to refresh projects, spare-part stocking, and deployments where copper connectivity remains the standard. For buyers comparing options, the difference is in fit and confidence. Dual ports provide more flexibility than single-port cards, while the Cisco-compatible positioning helps simplify procurement for mixed environments. With a lifetime limited warranty and a design focused on core networking functions, this adapter is built for teams that value compatibility, uptime, and clean deployment over unnecessary extras.