SC21H-3 is a secure 2-port 4K30 UHD HDMI KVM combiner. It enables users to share peripherals – keyboard, video, mouse, audio and USB - between two different security-level networks/computers while isolating all hosts and protecting against data leakage and malicious attacks through shared peripherals. SC21H-3 provides the highest possible isolation between connected computers and is designed to meet the security requirements of government agencies, military, financial institutions, and similar security-sensitive customers.