This is not possible (well it is possible, but we do not recommend or support it).
Other than this you could use any of the windows community recommended devices - you can search for this in this site - or one of the android recommended devices. Be sure to pick one that supports auto-power on.
The local storage feature you’ve mentioned is Xibo standard.
All my PCs are HardKernel Odroid C1. They works realy well, but have some issues.
To use the Odroid c1, you need a bit knowledge to burn images and resize partitions.
As Dan commented, there are some devices tested and recommended by the Xibo team. I’ve tested some others alternatives, but the Odroid was the better cost / benefit I found. Although, it is not a “official” equipment.