this video adapter be great for add a 2nd\/3rd display to you laptop . the refresh rate be not great , but its more that adequate for business application . it even work well enought for video chat . overall , I have be very happy with the device . it also come with a helpful app that allow you to move the screen a window be display on by hit ctrl + screen # -lrb- something Windows 7 should provide out of the box -rrb- .