Connect your mini displayport video source to a dvi d display the mdp2dvid mini displayport to dvi d dual link adapter lets you connect your mini displayport video source macbook macbook pro macbook air etc to any dvi d display including televisions and apple cinema display hd eliminating the expense of having to upgrade to a mini displayport capable monitor the mini displayport adapter offers an active conversion which is powered by a single usb port and is able to handle full dua