Keep critical systems on a wired connection with the AddOn ADD-PCIE-1RJ45 network interface card. Designed for PCIe x4 systems, it provides a single open RJ-45 port with 10/100/1000 Mbps Ethernet support, giving servers and workstations the bandwidth needed for routine transfers, application access, and dependable LAN connectivity. An internal PCIe adapter is the right choice when you want a permanent network path without occupying external USB ports or relying on consumer-grade dongles. The single-port design keeps the installation focused and efficient, while the gigabit-capable interface supports modern office and data-center edge workloads that still depend on copper Ethernet. For procurement teams and infrastructure owners, this card fits the category of hardware that earns its place by staying out of the way. It is a practical upgrade when a system needs a dedicated RJ-45 connection and the stability of an internal expansion card.