4-Port PCIe x4 2.5Gbps Network Card RTL8125B (10/100/1000/2500Mbps) RJ45 — Desktop Adapter

Add four high-speed RJ45 ports to a desktop with this PCIe x4 network adapter powered by the 8125B (RTL8125B) LAN controller. Each port supports multi-rate Ethernet at 10/100/1000/2500Mbps, delivering up to 2.5 Gigabit performance per link for faster file transfers, gaming, and high-bandwidth applications. The card installs in a PCIEx4 slot and provides four independent Gigabit/2.5G Ethernet connections for servers, workstations, or custom desktop builds. Ideal for users needing multiple wired network interfaces, this desktop networking card combines reliable RTL8125B silicon with broad rate compatibility and RJ45 connectivity to improve throughput and reduce latency.