I need this for my HD slim that just gets power from USB and my music class the USB items they use suck all the power.but i have a wall USB power source.
Yes I'm sure this would work. Just solder the red and black wires to an other usb cable and leave the other 2 data ones going into the computer. Plug the power usb cable into your adaptor and It should work. The device is still getting the 5volts it needs so I see no reason why it shouldn't work.
