StarTech CK4-D404C Secure 4-Port DVI KVM Switch

Control four DVI-connected desktops or servers from a single keyboard and mouse while viewing output across four monitors. This secure KVM switch keeps connected systems separated for environments where moving between networks must not create a path for data transfer. CK4-D404C provides a dedicated, configurable Common Access Card (CAC) port for smart-card sign-in and status LEDs for user-console ports, the CAC port, and port selection. Security controls are central to the hardware behavior. NIAP 4.0 certification, no internal memory or storage, and system isolation address deployments that require the KVM to avoid retaining or transferring data between attached systems. Anti-tamper switches monitor physical intrusion attempts; an intrusion disables functionality and triggers visual and audible alerts. Four-monitor operation lets an operator retain a multi-display workspace rather than reduce each controlled system to one screen. Use it at a fixed operator console serving four DVI systems where a keyboard, mouse, monitor arrangement, and CAC workflow must remain under controlled access. It suits secure operations rooms, laboratory benches, and administrative workstations that need physical indication of selected ports. Built in the USA, the unit combines the four-system KVM topology with hardware tamper response and a separate smart-card access path.