Add up to four 1GbE SFP modules to a PCI Express (PCIe) 2.0 x2 (or higher) slot in an IT Administrator workstation or server backplane, using this 4-Port SFP Network Card. The network interface controller connects to an available x2 PCI Express 2.0 (or higher) expansion slot. It is compatible with Windows Server 2012 and newer, Windows 10 and newer, Linux, VMware ESXi 7.x, and Microsoft Hyper-V. The PCIe network card supports PXE boot, enabling centralized operating system deployment and updates. It also features 9K jumbo frame support, reducing packet overhead for improved data transmission efficiency. VLAN tagging support allows for efficient network management and segmentation. The network controller supports VMDq, SR-IOV, and Intel VT-c technologies for enhanced virtual machine performance, reduced CPU overhead, and improved network virtualization capabilities. The card features four SFP slots for interchangeable SFP modules. Select fiber transceiver modules that best suit the network needs of the application, based on the distance and connector type. We offer a wide variety of SFP transceiver modules to meet many GbE network applications. This product is backed for 2-years and free lifetime 24/5 multi-lingual technical assistance.