The PCIe x1 RTL8105E Single 100M SFP network card is a compact and cost-effective solution for industrial and embedded networking applications. Built on the Realtek RTL8105E controller, it provides one 100Mbps SFP port through a PCI Express x1 interface, offering flexibility for fiber or copper SFP modules. Ideal for legacy systems, low-bandwidth environments, and specialized networking setups.