USB 3.2 Gen 2x2 PCIe Card - USB-C 20Gbps - USB 3.0 Cards | Add-on Cards & Peripherals | StarTech.com
Amazon.com: ADT-LINK M.2 Key M NVMe External Graphics Card Stand Bracket with PCIe3.0 X4 to Thunderbolt 3 Riser Cable PCI-Express External Adapter Cable EGPU Adapter 25cm 50cm 32Gbs for ITX STX NUC (
Node Duo - Thunderbolt 3 PCIe expansion chassis for 2 cards | AKiTiO
StarTech.com Thunderbolt 3 to FireWire Adapter - External PCI Enclosure - PCIe Card plus TB3 Chassis - The Thunderbolt 3 to 1394 FireWire adapter connects your FireWire peripherals to your Thunderbolt 3