The Orei UHDS-104 is a reliable distribution amplifier powered HDMI splitter that will take HDMI (1.3, 1.4, 2.0) signal up to 4K@60Hz and duplicate the signal to up to 4 HDMI displays simultaneously, creating an impressive lossless image or audio transmission via HDMI cable. Compact, durable and easy to set up and operate. Ideal for trade show, conference room, lecture halls, bed room, living room, kitchen room and backyard. Please note that this hdmi splitter 4k will duplicate the source to the four output displays. It can’t be used to extend a desktop for PC or a laptop. If the connected displays do not support the same resolution then the splitter will lower the output resolution to the next best resolution supported by both displays and same goes with the audio signal. We recommend using this HDMI splitter with high quality HDMI cables 30 feet or less. The package includes Orei UHDS-104 HDMI splitter 4K, 5V AC Adapter & user manual.