The PCIe x1 RTL8111E Single 1G RJ45 network card is a compact and reliable Gigabit Ethernet adapter designed for desktops, embedded systems, and industrial PCs. Powered by the Realtek RTL8111E controller, it delivers stable 1GbE connectivity through a PCIe x1 interface, making it ideal for upgrading legacy systems or adding dedicated network ports in space-constrained environments.