A 4K HDMI matrix to switch between 4 source devices and 4 display outputs. Use with HDMI cables of a combined 30m per input/output for 4K at 30Hz and FHD resolutions, or a combined 10m per input/output for 4K@ 60Hz. SPDIF and 3.5mm stereo outputs allow the audio signal from HDMI output #1 to be simultaneously channelled through a separate sound system and/or headphones. Robust metal chassis incorporates an EDID switch panel for specific video and sound requirements and an RS232 port for serial data communication with a connected PC or laptop. Compatible with the latest 4K digital TV boxes making it ideal for hospitality and entertainment venues and supplied with IR remote to switch between sources for all outputs.