3 Port USB 2.0 & 3 Port Firewire IEEE 1394 PCI Combo Adapter | SFCable
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
Amazon.com: Monoprice 4 PORT VIA IEEE-1394 FIREWIRE CARD KIT w/ Software and Cable : Electronics