1、High Performance: Equipped with for Intel I350‑AM2 chip, supports single I/O virtualization and improves server stability. The PXE, Iscsi, RSS, Jumbo Frame, NVGRE, make the server more stable. 2、Dual RJ45 NICs: RJ45 port auto negotiation 10 100 1000Mbps, link Cat5, Cat6, Cat7 cable, up to 100 meters. PCIe v2.1 (5 G T/s) x4 Lane, compatible with PCIE X4, X8, X16 slots. 3、Supported Operating Systems: Support for Windows 7 8 10 Vista XP, for Windows Server, for Linux, for Centos RHEL, for Ubuntu, for Debian, for FreeBSD 10 11 12 Open Unix 8, for Vmware Esxi 5 6 7, for SLSE. 4、Easy Installation: Comes with a driver CD to install the operating system, which you can also download from the for Intel website. 5、Flexible Mounting: Equipped with a low profile stand and a full height bracket, the card can be easily installed in a small or thin computer case or server. Item Type: Ethernet Network Adapter Card Material: PCB Bus Interface: PCIE X4 PCIExpress: 2.1(5 GTs) Transmission Rate: 10 100 1000M Applicable Network Type: Ethernet Port Type: 2xRJ-45 Chip: For LNTEL I350 Standards: IEEE802.3, IEEE802.3u, IEEE802.3x, IEEE802.3ab LED Indicator: 4LED 10 100 1000Mb (link/action) 1 x Ethernet Network Adapter Card 1 x Bracket