Bunanson, I have that exact same USB hub and it works perfectly with my 770! For this set-up I use a USB power-brick attached to the red power input, and the nokia attached to the black one (with a F-F adapter and a USB-micro usb adapter). Then the USB device I want to connect goes in any of the connectors on the the other side. Been meaning to put up some pics for a while, might do it later.