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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.
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Amazon.com: CY IEEE 1394 6Pin Female to 1394b 9Pin Male Firewire 400 to 800 Cable 20cm : Electronics
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