See how 4K 60Hz 4x4 HDMI Matrix 4 in 4 out 4K 30Hz 4x4 HDMI Matrix Video Switch Splitter Converter with Optical 3.5mm Audio output RS232 combines innovation with practical design for modern users. Created with one goal: to make your tasks simpler and more productive. Join thousands of happy customers shopping at Almos.pl every day.