This 2x4 Port Matrix DVI Audio Video Switch lets you select between two DVI-I sources for display on up to four monitors. At the push of a button, the DVI and audio matrix switch lets you select the audio and DVI input that will be delivered each display - providing the versatility needed to simplify digital signage configurations or multi-monitor presentations.Providing simple, yet comprehensive control of DVI signal transmissions, the 2x4 matrix switch lets you independently toggle video (and audio) on or off for each display. This not only helps prolong the lifespan of the monitor but also reduces power consumption, delivering an economical and environmentally friendly solution.StarTech.coms 2x4 port Matrix DVI A/V Switch includes an IR Remote Control and an additional (external) IR cable sensor that lets you install the switch in a discreet location while maintaining full control. For rackmounted installations, the matrix switch also includes ear-mounts that allow installation in any 19in(w) equipment rack/cabinet.