this accessory have boost my productivity significantly , I purchase the DVI connector as I think it would be faster . I have no complaint whatsoever . I call for support for something I could have fix myself -lrb- reinstall the driver -rrb- and they be very fast to answer . I be use 2 large 1920 by 1200 with a small laptop and my life will never be the same , I be now get one for home , so I can work consistently at home and work ! loving this device , a small cost for a large gain of productivity ! I buy one for everyone in we company who want it !