4K HD Multimedia Interface Matrix 2X2: HD Multimedia Interface 2.0, 2 in and 2 out, 4K 60Hz, 3D effects, switch distribution (two switching, two distribution), sound separation (stereo and optical sound output). Two Signals: HD Multimedia Interface splitter adopts two inputs, two outputs. Two signal inputs can be freely switched, signal output can be selected arbitrarily. It can display the same screen or different signal pictures. Four Major Technologies: HD Multimedia Interface splitter adopts anti-static technology to prevent electronic components from being damaged by static electricity. Anti-surge technology enhances product stability and prevents surge impact. 4Kx2K 60Hz for high definition vision. 3D imaging technology provides stereoscopic visual effects. Widely Compatible: HD Multimedia Interface switcher supports set-top boxes, desktops, notebooks and other devices with HD Multimedia Interface interface to connect monitors and projectors. Multi-system compatibility includes Windows, OS X and Linux systems. No need to install drivers, plug and play. 2 Modes, Sound Interface: HD Multimedia Interface switcher supports button and remote control selection. Remote control switching or manual button switching allows control of any picture. External sound and headphones, optical fiber, 3.5mm dual sound interface (optical fiber and one 3.5mm interface).