Cater 4x2 V1.3 HDMI Matrix Switch/Splitter (4-in, 2-out) with Remote Control & L/R Audio Output; Supports 1080p/1080p@24HZ 3D source, compliant with HDCP(4x2 V1.3 HDMI Matrix Switch)

Could not stop the unit from automatically setting the second output to match the first output. The point of a matrix switch is allowing one monitor to receive one input while a second monitor receives a different input. This won't handle this basic task. The instructions are worthless.

The box not work as we though, everytime switch channel selection the A&B output will be black out screen for 7-9 seconds.