I use it with the supplied AC adapter. It is connected to a USB 2.0 interface.
Adjacent to it are in iPhone, an iPad, a 4 Spyder and a wireless USB mouse from Logitech. With a small program from D-Link also works to charge an iPad. 4
I can recommend the Hub readily.
Supplement 01.05.2014
The surface is very delicate and scratched even when removing dust with a soft cloth.