The Xantech <b>HD44CC5</b> four-source, four-zone high-definition matrix switcher has component video and S/PDIF digital audio inputs for each source. All four zone outputs have component video output and S/PDIF audio output for economical local distribution up to 250 feet, as well as a RJ45 output for transmission of the video and digital audio signal up to 1000 feet to the <b>HDRXSG01</b> receiver (<b>required</b>) located in the zone. Both coaxial component video output and CAT-5 output are active simultaneously, making it possible to distribute four sources to eight outputs at the same time. The unit is expandable up to 16 zones.</p><p><br /><b>Please note:</b> The <b>HDRXSG01</b> receivers are sold seperately. Given the release year of this unit ( 2009 ) you will need to check with the manufacturer to see if the receivers are still available.</p>