Power consumption

What is the power consumption of Mycloud in working mode and in standdby mode?

There is some past discussion on power consumption in the following thread:
https://community.wd.com/t/how-much-power-does-mycloud-consume/91094

The My Cloud User Manual indicates the power supply is 18 watts.

In the user manual i didnt find anythin.
18W in working mode or sleep mode?

The User Manual just states the power supply is 18 watts. If you see the link I posted above to a prior thread that discusses the power consumption of a My Cloud you’ll see that one user reported their consumption was; “… 9W of power when I’m copying files to it. And goes down to 4W when it goes to sleep.”

Or see the following YouTube video where someone put a meter on the My Cloud power adapter and got similar results.
https://youtu.be/giJhm-eV_HA

Try reading the posted link…