This 4K HDMI over IP receiver works with the 4K HDMI over IP Extender Kit (sold separately) and lets you extend a 4K HDMI signal, as well as RS-232 peripheral device connections, over your network. You can use additional receivers (sold separately) to distribute the HDMI signal to multiple locations, each with 4K support, and combine your remote displays to create a video wall. The IP receiver also features RS-232 extension which enables you to add a remote serial operated device at your video source or each remote display. This HDMI over IP extender is the perfect solution for combining a serial-operated touchscreen with your display or video wall, to create interactive digital signage presentations.