Individual drive powering functionality on the Mobius Thunderbolt 2.

To power down a drive, hold down the corresponding button for 3-5 seconds. To power on, briefly hold the corresponding button (do not hold).

If only a certain portion of the drives are powered, and you would like only those drives to power up after the Mobius awakens from sleep mode, leave the Mobius' main power switch in the ON position.

Then, when powering up your computer, the HDDs will remain in the previous state.

The HDDs will only revert to the default ON state when power cycling the Mobius with the main power switch.