Hi, I have a heap of various electronic devices that connect to my computer via usb cables. However, the cables are very easy to mix up and it is not easy trying to work out which belongs to what device. Can someone please tell me if it matters or not if I use say my camera's USB cable for connecting my camera, external drive and phone to my computer, so long as that one cable fits in the connections on all of the devices? Or is there something unique within each USB cable that means it should only be used for the device that it came with (ie the phone needs the phone's usb cable, the camera needs the camera's cable etc)? Hope the question is clear enough. Cheers.