ernst.haefliger6 years ago000Does a power supply unit have to be attached to the 5V connection or does the system also work without it?Show in original language (German)ricowenk534 years ago • purchased this product000purchased this product. and despite everything, my Yoke does not receive any power (clock does not light up) and accordingly cannot be installed. What can I do?Show in original language (German)CommentAnonymous6 years ago • purchased this product000purchased this productThe system works without a mains connection, the USB connection is sufficient. A power supply unit is not supplied at all.Show in original language (German)Comment1 comment