Modern applereg macbooks and macbook pros use a new compact video output called mini displayportreg meaning they will not connect to your existing hdmi monitor tv or projector the same is for many windowstrade graphic cards which also feature this compact mini displayporttrade interface by passing the current hdmi standard we used in the past the new lms data c mdp hdmi solves this issue and allows instant connection of your existing hdmi video device to be connected to any mini