USB 3.0 Hub 7 is not working

We just bought plugable 7 ports USB Hub (USB3-Hub7-81X).
When we plugged the power, three of the blue LED lights come on and then turn off. After that nothing seems to be working.
The green light on the power supply stays on and the measured voltage is 6.53 VDC.
It appears that something is wrong with the USB Hub. What are we supposed to do?

Hi Matt,

Thanks for posting here! I’m sorry to know that you are having trouble with the Plugable 7 Port USB 3.0 Hub.

Just shoot us an email at with your amazon order ID and a link to this thread and we will take care of the issue.