1Gb-10Gb Base-T PCI-e Network Card PCI Express Ethernet Adapter for Windows

Fix the baffle with screws and insert an ethernet cable to the RJ45 port. ☺The PCIe interface compatible with PCI-E slots only, not for PCI slots. Extend Port: 1 RJ45 Ethernet port. LED: 1 x Link(Green), 1 x Ethernet (Yellow).

eBay