Summ summ summ

In principle, this does what it should and cable also looks chic. It charges my phone and if necessary, I can also use it as a data cable to my computer. So far so good.
It is a pity that it is booming ... Yes, you read correctly. Once plugged into the socket, it is humming. With or without a mobile phone, does not matter. I have several of these cables ordered (at home, at work, etc.) and have all the same problem. It's not super loud, but audible.
Will not Return, but not order one more time.