Belkin Advanced Secure Ultra High Def Quad-Head KVM Switch; 4-Port Plus - 4 Computer(s) - 1 Local User(s) - 3840 x 2160 - 2 x PS/2 Port - 11 x USB - 3 x HDMI - 5 x DVI - Desktop - 12 x DisplayPort

Protected DisplayPort Channel Switching - The Belkin Secure DisplayPort KVM switch includes security mechanisms to protect DisplayPort channels NIAP Certified Common Access Card support Unidirectional data paths: Optical data diodes prevent peripherals from being used to breach systems Dedicated processors with emulators for every port: Isolated port paths for video, audio, peripherals, and smart card readers prevent data leaks between computers The Belkin Secure DisplayPort KVM supports HDMI and DVI Monitors Multi-monitor support: Connects up to four monitors for each system to increase user productivity. Fully compatible with computer video cards using DisplayPort 1.1 and 1.2 protocols, supporting resolutions up to 3840 x 2160 pixels (UHD 4K) @30Hz, 2560 x 1600 pixels @ 60Hz. Common Criteria Validated to NIAP Protection Profile 3.0 Increased Reliability- Using a unique anti-tampering battery with an extremely low self-discharge rate, the life expectancy of the switch has been increased dramatically to over 15 years Peripheral management: USB device detection prevents unauthorized peripheral usage