4 SFP Port PCIE X4 1G Quad Port Fiber Optical NIC Adapter Network Card Controller CHIPSET INTEL 350AM4 Gigabit 1000M Ethernet - AliExpress
Amazon.com: 10Gb PCI-E NIC Network Card, Dual SFP+ Port, with Intel 82599EN Controller, PCI Express Ethernet LAN Adapter Support Windows Server/Linux/VMware, Compare to Intel X520-DA2(Intel E10G42BTDA) : Electronics