This review is from: Koutech IO-HU431 4-Port SuperSpeed USB 3.0 External Hub
Pros: After much struggling it works.
Cons: This unit has a 12v@2amp external power supply which is always on. Four ports of USB 3.0 require 3.6amps (900ma/each) @ 5 volts, thats 18 watts total. The external supply supplies 24 watts. The onboard electronics uses about 2 watts. This requires the onboard step-down switcher to be 83.33% efficient which it is not. This results in a BSOD condition which I got many times. To prove the point I hooked an external supply rated at firstname.lastname@example.org. No more BSOD.
Other Thoughts: Unless you have have an engeering background, as I do, I wouldn't recommend this.
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