Converting a few case fans to one usb?
Basically what I'm trying to do is hook up 2 (maybe 3) 100mm case fans to something and then a USB port to make a cooling station for my Xbox One. I've seen articles on stripping fan connectors and USB cables to connect the red and black wires and make a USB powered fan, but I don't want 3 separate cords. I've done some research and see that a usb is only 5 v and the fans run at full speed at 12 v. Something with a switch would be awesome, but something that turned on automatically would be just fine. I'm guessing I should run them full speed at all times, but a nice current through the system is all I'm looking for. Any help is greatly appreciated. I'm an electicity rookie but I can splice up some wires haha.
Thanks. Oh, and did I mention, I'm cheap. That's part of it too.