Vertiv Cybex Secure 4K UHD KVM 4-Port DisplayPort DH DPP NIAP EAL4+ TAA (SC945D-001) 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 DisplayPort delivering resolutions up to UHD 4K on dual-head monitors assures image quality is highly accurate and video plays at the highest definition possible DEDICATED PERIPHERAL PORT (DPP): Ensures a secure connection to external USB devices, including CAC smart card readers, fingerprint readers, and face recognition devices 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 ZERO DELAY SWITCHING: Full USB device filtering assures support for keyboard and mouse; instant switching via emulation assures zero delay in switching time between connected sources