Belkins Secure DVI-I KVM Switches provide superior security & data protection by providing true data path isolation between systems & networks. They are fully compatible with legacy & new government systems & meet Common Criteria security requirements. Belkin Secure DVI-I KVMs are designed, manufactured & certified to the latest NIAP Protection Profile Ver. 3.0 standard. The latest NIAP Protection Profile ensures agencies are receiving superior protection for keyboards, pointing devices, displays & audio. Using unidirectional data paths with optical diodes, they prevent peripherals from being used to leak information from one computer system to another. Additional security is provided through the end-to-end tamper-proof system that prevents physical tampering, & the intuitive user interface reduces user-switching errors by providing clear identification. The Belkin Secure DVI-I KVM Switch; 4-Port features support for up to four computers. Expect the best compatibility out-of-the-gate with a Secure KVM solution thats designed & vigorously tested to work seamlessly with common systems & peripherals used by the defence & intelligence community.