4x3 VGA Switcher 4 In 3 Out VGA Video Splitter Box 4 Port VGA Switch Adapter
(This 4 in 3 out VGA switcher splitter allow you to connect up 4 VGA sources and choose one to send 3 VGA displays simutaneously. It is a combination of VGA Switch and Splitter. 1)The VGA Switch splitter 4X3 can not work as Matrix.