I226-V 2.5G (2500Mbps) PCI Express to RJ45 Four-Port Network Card — Gigabit Ethernet PCI-E Wlan Adapter for Desktop

Multi-rate performance: supports 10/100/1000/2500Mbps for fast, high-throughput data transfers. Gigabit Ethernet ready: compatible with Gigabit networks to deliver the speed needed for streaming, gaming and large file transfers. Wired RJ45 connectivity: this PCI-E (PCI Express) desktop adapter provides a wired connection through four RJ45 ports, offering a more stable and consistent link than wireless alternatives.