100V-240VAC In, 5V 8A output AC adapter:
http://www.1stincity.com/en/laptop-p...er-bay457.html
5.5 mm x 2.5 mm coupler
http://www.altex.com/25mm-DC-Power-F...8-P149322.aspx
USB A Female to 5.5mm x 2.5mm Barrel Connector Power Cable.
http://www.bixnet.com/usbfeto5madc.html
USB A male to two USB A female
http://www.ebay.com/itm/USB-Splitter...d#ht_655wt_894 you will need three.
Plug 'em together, enjoy the high power

as a bonus you can enjoy a freakin' cable jungle :P