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: Padarsey PCIe 3 Ports 1394A Firewire Expansion Card, PCI Express (1X) to External IEEE 1394 Adapter Controller (2 x 6 Pin + 1 x 4 Pin) with Low Profile Bracket for
3 Port USB 2.0 & 3 Port Firewire IEEE 1394 PCI Combo Adapter | SFCable - SFCable
FireWire, USB 2.0, SATA Combo PCI Card, 3 USB , 3 FireWire and 2 SATA Ports
Pcie Firewire Card For Windows 10,ieee 1394 Pci Express Controller 4 Ports(3 X 6 Pin And 1 X 4 Pin),firewire 800 Adapter - Pc Hardware Cables & Adapters - AliExpress
PCI Combo Card SATA, USB 2.0 & FireWire - ppa-usa.com