May I be sarcastic? Hopefully a connection that fits the CH mains! With my model, the mains cable was supplied in EU standard and because the mains cable is fixed to the monitor, the face first became longer and longer, even the supplied mains cable with C13/T12 plug was not really helpful...The solution is relatively simple, a plug-in adapter from EU to CH standard. It would be nice if this was included in the price difference of 19.-- ;-)