Date Rate10/100/1000Mbps, up to 100m via Cat5/ Cat6/ Cat7 cable for meeting the demands of data center environments. NOT support hot swaping ^^ Intel I350AM4 Ethernet ControllerCompare to Intel I350-T4, Quad Copper RJ45 Ports Auto-negotiation 10/100/1000Mbps. ^^ System InterfacePCI Express v 2.1 5.0GT /s, x4 Lane, PCIE_X4. Compatible with PCIE X4, X8, X16 Slot. ^^ Technical Support1-year Warranty, 30 Days Free-return, Free Lifelong Technical Support. Driver CD Included, Full Height profile bracket included that support on Standard and Slim computer/server. ^^ CompatibilityCompatible with Windows 7/8/10/Vista/XP, Windows Server 2008/2012/2016/2019, Linux, Centos/RHEL 6/7/8, Ubuntu 16/18/19/20, Debian 9/10/11, FreeBSD 10/11/12, Vmware Esxi 5/6/7, SLSE 11/12, etc.