Hello there---I have a nMP and a 30" ACD connected via the apple dual link adapter. i wanted to connect my iPhone and iPad docks to the 2 USB ports on the back of the ACD but the iPad will not charge, says not enough power to draw from USB port. iPhone 5s has no issues charging/syncing. iPad syncs but does NOT charge. I was thinking, can i unplug the USB cable from the dual link adapter from the nMP and plug that into a wall outlet? would that power the 2 USB ports better? more importantly, not damage my 30" ACD, may be old  but still a awesome screen. anybody have a different work around without plugging into nMP?