Found this an amazing piece of kit. Easy to set up and easy to use and cheap. (Disable firewall during software installation - not mentioned in instructions). I have Windows7 64bit home premium, Canon MP550 multifunction printer/scanner and two 250GB USB portable drives used for backups, which are connected to the device via a 4 way USB hub. All the printer and scanner functions are available including ink reserves, printer progress, scanner set-up etc. Its good to have a device that worked first time, is consistant in operation and enables me to get all the wires out of my laptop! Can recommend it.