Connect a second monitor to your laptop or computer. This device allows to use your newer laptop with an older yet dependable display with a VGA/SVGA input. Just connect the USB adapter to your laptop using a USB cable, plug in a VGA cable on the other side of the box, and into the display, and you will see in crystal clarity exactly what is on the laptop, projected on the screen in front of you. It does not get any easier than this. Full HD Display.