Style: 4x1 Multiviewer HD-401MR HDMI 4x1 switch connects 4 HDMI sources to a single HDMI display and offers 5 modes of display on the screen: single source, dual sources, all four sources in three different view modes. You also have the option to set the Audio to a single specific source when youre displaying multiple sources on the screen. You can also turn off the borders when displaying multiple sources by holding the audio button for 2 seconds on the HD-401MR. For your convenience, control the HD-401MR using a remote control, buttons on the device or RS-232 commands by connecting it to a PC. The HD-401MR is compact, durable and easy to set up and use. The switch between sources is seamless and quick without lag. It supports up to full HD 1080p display and sources along with 3D support. Ideal for multi HDMI -user video conferencing systems, monitoring, live games, shopping mall, exhibition hall, stock market, display mall, education, surveillance etc.