Numark DJ io timed out driver install error

Problem was quite easy to solve, if you are installing this usb external soundcard under xp, you probably need for sure attach the external 5-6v DC supply. Even more, its recommended to always use dedicated external power supply or 1amp from an USB 3.0 port. Drivers provided by numark on the net we're fine, trouble was this annoying card is power hungry. Specs tells you about a 6v 1A so you can imagine it is not something optional. Amazing mis info from the manufacturer, almost no support from them and we don't know what chip it uses.