DGE-560SX Gigabit fiber PCI Express x4-adapter | D-Link Sweden
Amazon.com: Dual-Port PCIe X4 Gigabit Network Card 1000M PCI Express Ethernet Adapter with Intel 82576 Two Ports LAN NIC Card for Support PXE SR-IOV for Windows/Windows Server/Linux/Freebsd/DOS with Low Profile : Electronics
Can this configuration work on the PCIE slots? : r/pcmasterrace
Amazon.com: BEYIMEI PCI-E to 2 USB-Port Expansion Card,PCI-Express 4X USB 3.1 Gen 2 Card 10 Gbps, USB-C &USB-A Add-On Adapter Card Compatible with Windows 8/10 / MAC OS 10.14. : Electronics
StarTech.com 8 Port SATA PCIe Card - PCI Express 6Gbps SATA Expansion Card with 4 Host Controllers - SATA PCIe Controller Card - PCI-e x4 Gen 2 to SATA III Adapter Card -
What Is PCI Express (PCIe)?
PCI Express - Wikipedia
RIITOP M.2 Nvme SSD to PCI-e x4 Adapter Card Converter Support M.2 NGF