This product allows to broadcast the same video signal on 2 different screens. You take a video output and cable duplicate of 2 new video outputs. This allows, for example through training, released a statement on several screens in a meeting room. I tried it with a Macbook Pro Retina 2012. Used with Mini DisplayPort / VGA adapter, this allows my Mac to broadcast on two VGA displays an extension of my office. The duplicator features a USB power cable to improve the signal. In the context of use with the Macbook Pro the signal did not need additional power, even with a broadcast signal in 1280x960 90MHz output on two monitors. Very good solution so simple, without any configuration, light and works first time without taking the head. It should be against by the use of this type of solution, very specific though.
