elago FireWire 400 to 800 Adapter (White) for Mac Pro, MacBook Pro, Mac Mini, iMac and All Other Computers - Walmart.com
Jeff Greenstein on Twitter: "Just for fun, I tried connecting my old iPod to my new MacBook — and miraculously, it worked. From right to left: USB-C to Thunderbolt > Thunderbolt to
2 m (6.6 ft) Firewire-400 (IEEE-1394a) cable - Unibrain - Your Firewire & USB professional solutions center
FireWire 400 to 800 Adapter [2 Colors] – elago
FireWire to USB-C - Apple Community
How to Connect Firewire Devices To USB C or Thunderbolt Port