Unfortunately, she has no power switch, but it consumes only 6.5 W and automatically switches to a sleep mode. That's why I do not bother too much of this point. The data transfer is quite fast over USB 3. Also there is nothing to complain about.
But this hard drive hums really noisy. I have been with any other so experienced (compared appliances: TrekStor, Intenso, WD). I feel this inherent noise as extremely disturbing. That is why I would have returned to a hair. Another point of criticism is the short cable.
The hard drive can be connected to computers and televisions without hesitation and use the charger. But should Listen-on the sound you had better not. After a while it is possible to ignore the background hum, runs the way music or a movie, it's also not a big problem. I am not fully excited, however.
If you appreciate a quiet machine, possibly should rather take a different brand.