This ATEN VS481A 4-Port HDMI Switch is a high-quality device that allows you to connect up to four HDMI sources to a single display device. It is perfect for home theatre systems, conference rooms, and other settings where multiple HDMI sources need to be connected to one display.With features such as Dolby True HD and DTS HD Master Audio support, UK power plug, and remote control options including RS-232 or IR control, this HDMI switch offers a versatile and convenient solution for your connectivity needs. Plus, with its bi-directional RS-232 connectivity, you can easily integrate it into a larger control system.