Cybex SC840H Secure KVM Switch - 4-Port, Single Display, HDMI in, HDMI out, Secure KVM

PERIPHERAL ISOLATION: Hardware-based peripheral isolation loads all firmware on ROM without keyboard buffering or memory; unidirectional optical data diodes assure USB peripheral isolation enabling data flow from devices to host only USB DEVICE FILTERING: Full USB device filtering assures support for keyboard and mouse only NIAP 3.0 & EAL4+ CERTIFIED: Secure 4-port KVM features an always-on active anti-tampering system certified by NIAP & EAL4+, ensuring the highest security for peripheral sharing; the unit is also TAA Compliant 4K UHD SUPPORT: Advanced video support for HDMI delivering resolutions up to UHD 4K assures image quality is highly accurate and video plays at the highest definition possible ZERO DELAY SWITCHING: Instant mouse and keyboard switching via emulation assures zero delay in switching time between connected sources