√-🌐 PCI-e4.0 X1,X4,X8,X16: 10G PCI-E Network Card supports 1 supports the new generation PCIe 4.0 x1(Compatible with PCIe 3.0/2.0) bus interface and adaptercan converts PCIe slots (X1X4/X8/16) into 10G RJ-45 Ethernet ports.
eBay