I added what I call a "self-powered" USB hub on my VeraLite. This 4-port hub is powered off the Vera's 12VDC power plug so there are no extra power bricks or cords to deal with. Video below: https://youtu.be/K_hlMJ0q1Ok This in itself saves a few watts of power that would have been used by the separate wall wart for the hub (about 20KWH/year savings!). Ultimate goal for my Vera is to place it on my solar battery bank running off 12VDC power.