Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter - Apple
Apple - FireWire adapter - Thunderbolt - FireWire 800 - MD464LL/A - Audio & Video Cables - CDW.com
Amazon.com: PASOW FireWire 800 to 400 9 to 6 pin Cable (9pin 6pin) 6FT, IEEE 1394 Firewire 800 9-pin/6-pin Cable 6 Feet(9 pin to 6 pin) : Electronics
Why won't this cable work? Firewire800>Thunderbolt>USB-C. I'm trying to mount an external drive on a Mac Pro 5,1 (Mid-2010). The drive doesn't seem to be getting power. Any tips would be appreciated.