The 4x1 Vista HDMI 4K KVM Switch from Rose Electronics is a 4-port HDMI KVM Switch with 4K Ultra-HD video support and USB 2.0 sharing. This dedicated multiplatform KVM switch is capable of managing four computers using a single HDMI high-resolution monitor with USB keyboard and mouse control. The switch can be controlled through the front panel LCD display with push-buttons, via keyboard hotkeys, or via RS-232 serial port commands. In addition to host USB 2.0 support and HDCP compliance, the Vista HDMI 4K features plug-and-play EDID, which makes it easy to implement in a variety of applications. Upon power-up, the switch automatically learns and copies the display EDID to all ports.