UR22C power supply required?


today I received my new UR22C (my 1st Audiointerface, am on Audiophile2496)
due to not having the new PC here, just watched what for things are written on the package :mrgreen:
and suprised that there stands “USB 3.0 bus power operation (optional power supply required for USB 2.0)
can´t test it, because running Win7 on this old PC, the new one will have Win10

long text short:
is it true, that the UR22C is not running on a USB2.0-socket at the PC without an optional power supply?

if so, it´ll go back and I decide carefully again, which audiointerface will replace my M-Audiophile

for confirm or other tips I´m thankful
The Sarge!