NIC Controller: The PCI E NIC network card is based on the RTL8111G chipset, supporting Single Root I/O Virtualization and intelligent offloading to enhance server stability. 2-Way RJ45 NIC: The 2-port Gigabit Ethernet adapter features RJ45 ports (10/100/1000 Mbps) for connecting Cat5 UTP/Cat3 UTP. It has a PCIe x1 Lane and is compatible with PCIE X4, X8, X16 slots. Supported Systems: The Gigabit Ethernet adapter supports Win 98SE, Win ME, Win Server 2000, Win XP, Win Server 2003, Win Vista, Win 7, Win Server 2008, Win 8, Win 8.1, Win 10 (32&64bit), Linux, DOS, etc., as well as soft routing, NAS, virtualization, and other special applications. Easy to Install: The 2-port Gigabit Ethernet adapter includes thin and full-height brackets to support standard and ultra-thin computer servers. PCB Material: The PCIe 2-port Gigabit server adapter uses PCB material, ensuring stability, reliability, and a long service life.