Black Box Secure Kvm Switchbox With Cac 8 Port Dvi Desktop Controller Authentication For High Security Environments Switch Monitor UsbDesigned for high security environments, the Black Box Secure KVM Desktop Switchbox puts you in command of up to eight DVI enabled computers from a single workstation. Its CAC enabled architecture delivers trusted connections and authenticated sessions, ensuring isolation and protection as you switch between hosts. Built for reliability in busy IT rooms, data centers, and sensitive testing labs, this 8 port KVM switch minimizes desk clutter while