Special Note: You can connect two monitors at the same time, but the same signal and size are fully supported. Most models and different sizes support simultaneous display, but there are also many that can not be displayed at the same time. Only one can be used alternately, otherwise there is no picture. NOTE: Only 1 output device should be active at any time unless both of the 2 display devices share the same size and model. NOTE:  Does not work on TV box / cable box / Satellite Receiver (e.g. Roku, for Apple TV box, etc.) NOTE:  this splitter is for you to connect 1 electronic device to 2 TVs/monitors. Gold plated connectors works with high performance.     HDMI Male to 2 HDMI Female Adapter replicates single output into two outputs. You can only connect one input device ( i.e. DVD player,cable box or satellite receiver ) to two output device( i.e. TV or projecto r). and only one output device can be displayed at the same time. You can't connect two input device ( i.e. PC,DVD player, cable box or satellite receiver)  to one output device(i.e. Monitor, TV or projector ). this HDMI male to 2 HDMI female splitter It provides a fast and easy way to simultaneously connect 2 HDMI displays to a single digital HDMI source. The splitter cable is for splitting 1 HDMI signal to 2 HDMI.   HDMI Male to 2x HDMI Female Splitter cable is for splitting HDMI high quality digital video signal to 2 HDMI Female output simultaneously.