DAS via TB port refuses to power down upon system shutdown

[ramseysparrow]

Is there a way to stop TB ports from supplying power after system shutdown?

I have just started using D2-320 DAS and found there's a problem there.

On the Windows side of the hackintosh, but also on a macbook air, the DAS enters low-power state upon system shutdown. On the macOS side of the hackintosh, however, the same operation results in the DAS continuing to run indefinitely.

Sleep works correctly on all three – it's only the shut down and only on the macOS side, that misbehaves.