10GB PCIe Network Card to 10 Gigabit Ethernet Network Adapter RJ45 Port NIC Card

PCIe to 10Gbe RJ45: This 10G BASE-T PCIe network adapter converts PCIe slots (X4/X8/16) into 10G RJ-45 Ethernet ports. Note: Only for PCIe ports, not for PCI slots.

eBay