![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. 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.](https://i.redd.it/q0bia8d41ny51.jpg)
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.
![6FT Firewire High Speed IEEE 1394 Firewire 800 to Firewire 400 Cable, 1394B 800-400 IEEE 9 Pin Male to 4 Pin Male Cable for MacBook Pro, Mac Mini, iMac PC, Digital Cameras, SLR - Walmart.com 6FT Firewire High Speed IEEE 1394 Firewire 800 to Firewire 400 Cable, 1394B 800-400 IEEE 9 Pin Male to 4 Pin Male Cable for MacBook Pro, Mac Mini, iMac PC, Digital Cameras, SLR - Walmart.com](https://i5.walmartimages.com/asr/a3c7f2bb-9811-47ee-b571-1b20a2ed296a.6f8b29eda283c709ed3cff3a393d4373.jpeg)
6FT Firewire High Speed IEEE 1394 Firewire 800 to Firewire 400 Cable, 1394B 800-400 IEEE 9 Pin Male to 4 Pin Male Cable for MacBook Pro, Mac Mini, iMac PC, Digital Cameras, SLR - Walmart.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 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](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61+46yGqjjL.jpg)
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
![lM ll lL lL S ar Twitter: "Peak #dongle 2017 Thunderbolt 3 (usb-c) > Tb 2 > FireWire 800 > FireWire 400 https://t.co/lOmAutctZj" / Twitter lM ll lL lL S ar Twitter: "Peak #dongle 2017 Thunderbolt 3 (usb-c) > Tb 2 > FireWire 800 > FireWire 400 https://t.co/lOmAutctZj" / Twitter](https://pbs.twimg.com/media/DMhr8PbU8AA8iHk.jpg:large)