Hi Grigory,
as the Tobii EyeX is a Windows device only, it is not compatible with an Android device or an Ipad. So for that, I unfortunately can’t offer you a solution.
However, about the power issue, you most likely will need to update your USB 3.0 controller drivers, please have a look at our FAQ, for more details: http://developer.tobii.com/support/
Cheers,
Konstantin