Amazon.com: ASUS ThunderboltEX 3-TR Expansion Card for Z490 (Intel 10th Gen CPUs)motherboard (PCIe 3.0 x4 interface, 2 x Thunderbolt™ 3 USB Type-C® ports with 100w USB quick charge, 2 x mini DisplayPort
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
xMac mini Server Thunderbolt 3 Upgrade Kit – SONNETTECH