Hi Chris,

I can only speak for my Ketron SD1000 unit, which I use with vArranger. I power it using a USB 3.0 port of a 2-in-1 laptop. Please note that the SD1000 in the following photo is connected through USB only, without using AC/DC adapter.

I found that my SD1000 can only be powered by the USB 3.0 port on the laptop directly and gets recognized by Windows as an audio device. The SD1000 is not recognized by Windows 10 when connected through a USB 3.0 hub.

Thanks,
Paul