Admittedly, it's not a major headache, but it is an irritation nonetheless. I'm talking about having to make sure that the male USB-A connector is the right way up before you slot it into the female socket. Designer Ma Yi Xuan has come up with one of those simple, effective ideas where you have to wonder why no one else has gone there before. The Double USB concept features a couple of spring-loaded plastic connectors laid one on top of the other with the metal strips pointing inwards. The idea is that whichever way you push in your USB plug, it will always connect.
Source: gizmag.comAdded: 22 February 2011