Safely and securely switches between 4 isolated computers with different security levels Certified to NIAP/Common Criteria Protection Profile for Peripheral Sharing Switches V3.0 Common Access Card (CAC) port supports biometric and smart card readers KVM switch supports HD resolutions up to 2560 x 1600 (@ 60 Hz) for crystal-clear video Complies with Federal Trade Agreements Act (TAA) for GSA Schedule purchases; NIAP approved