HELP!

I'm not sure what I did, but now all 10 blades I have are not working!
I was trying to use a molex adapter to power a usb hub, and I'm not sure what I did but none of the units work.
No red lights come on when they are connected to a Pi. I tried using a friends blade on the exact same setup, and the red lights came on.
Is it possible I fried my blades? Is there a reset button anywhere?
What do I do?