Vertiv Cybex SC840H, 4-Port, HDMI, Secure KVM Switches are compact, secure desktop solutions that provide zero-delay switching and prevent data leakage, transfer and crosstalk among up to four desktop computers and one monitor. Display support is HDMI 1.4. Compliant to NIAP Protection Profile for Peripheral Sharing Switches, version 3.0 and TAA, Vertiv Cybex SC840H Secure KVM switches deliver fast, smooth transition and reliable service in a small desktop footprint, using a discrete processing path for peripheral isolation, enabling data flow from devices-to-host only to prevent data leakage. Full USB device filtering provides support for a keyboard and mouse only. Enhanced video support for HDMI 1.4 delivers resolution up to UHD 4K - 3840x2160 and assures highly accurate image quality and video playback at the highest possible definition. They include four HDMI 1.4 input ports and one HDMI 1.4 output video connection.