2 Port USB-A 3.0 5Gbps PCIe Adapter Card, Compatible with Windows and Linux (Not support Mac OS),Low Profile Bracket Included
PCIe-mPCIe PCI Express Mini Card Adapter for PCIe Slots - ACCES I/O Products
2x 10Gbps USB C PCIe Card -USB 3.1 Gen 2 - USB 3.0 Cards | Add-on Cards & Peripherals | StarTech.com
PCI-Express PCIe To PCI Bus Adapter Card
StarTech.com PCI Express (PCIe) to PCI Converter Adapter Card (PEX1PCI1)
Amazon.com: PCIe to PCI Adapter Card,PCI Express x1 to PCI Single/Double Converter,PCI-e Extender Card with USB3.0 Cable for Desktop Sound Card (PCIe to Single PCI Slot) : Electronics
USB to Mini PCI-E Adapter with Bottom Side SIM Card Slot - The Wireless Haven
PMC to PCI Express Adapter w/ TSI384 - 1 Lane (8636) | Technobox
PCI-Express to PCI Adapter Card PCIe to Dual Pci Slot Expansion Card | eBay
PCI-E to 8 Port USB 3.0 (2xUSB-C, 6x USB-A ) Expansion Card 5Gbps,Exte – RIITOP
PCI Express CAN Adapter CPC-PCIe – Traquair Data Systems, Inc.
NeweggBusiness - StarTech.com PCI Express to PCI Adapter Card Model PEX1PCI1