Vertiv Avocent 4-Port HDMI 4K Ultra HD KVM Switch (SV240H) CONTROL UP TO 4 COMPUTERS: Access and control up to 4 computers using a single keyboard, monitor, and mouse at the push of a button 4K UHD SUPPORT: Advanced video support for HDMI up to UHD 4K assures image quality is highly accurate and video plays at the highest definition possible COPY & PASTE: Simplify work with managed copy and paste of text between computers for enhanced usability,Power Consumption:12V DC, 1.5A ZERO DELAY SWITCHING: Instant mouse, monitor, and keyboard switching assures zero delay in switching time between connected sources INDEPENDENT AUDIO & USB SWITCHING: Easily switch audio and USB peripherals to freeze audio while simultaneously working on a separate system; 3 USB 3.0 ports provided to enable easy connectivity to external USB devices, quick data transfer, and high speed charging of mobile devices