I use this cable to my radio / CD players to disconnect from the mains. Although the radio even has a toggle switch, which allows you to turn it off, but unfortunately he hums then continues softly. Since I have a very sensitive Heard and moreover is in the bedroom, which quite annoying. Always extra-unplugging is still a bit cumbersome. But since I have this cable, I no longer have the annoying hum.
Simply ausknipsen, done! And definitely not Kriechstromverbrauch. And at this price you really can not say anything