jeltic2 years ago000Does the DELL S2722QC have an external power supply?Show in original language (German)markus.gyger2 years ago • purchased this product-101purchased this product Helpful answerNo. Cable, 220V plug, readyShow in original language (German)CommentAnonymous2 years ago000Contrary to the wrong answer, yes, the screen has an external power supply.Show in original language (French)Comment