Kramer AD-RING-6 HDMI Adapter Ring is a secure 16-port 4K30 UHD DP/HDMI KVM combiner. It enables users to share peripherals – keyboard, video, mouse, and USB - between two different security-level networks/computers while isolating all hosts and protecting against data leakage and malicious attacks through shared peripherals. TC162PHG-3T 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.