TetherPro FireWire 800 9-Pin to 9-Pin | Tether Tools
Amazon.com: 1pcs 1.25m IEEE-1394B Firewire 800 to 400 9-pin/6-pin White Cable : Electronics
FireWire 800 9-6 Adapter
Amazon.com: Padarsey PCIe Firewire Card for Windows 10, IEEE 1394 PCI Express Controller 4 Ports(3 x 6 Pin and 1 x 4 Pin), 1394a Firewire 800 Adapter for Windows 7/8/Mac OS with