Maintain strict control over four systems from a single dual-display workstation without compromising separation. The ATEN CS1144D4 is designed for secure environments where operators need fast access to multiple computers while preserving the boundaries required by regulated, classified, or air-gapped workflows. With USB and DVI connectivity, this secure KVM supports dual-display operation for users who depend on clear visual context across multiple systems. PP 4.0 security architecture helps enforce the controls expected in high-assurance deployments, making it a strong fit for command centers, defense operations, and sensitive administrative stations. This model is built for teams that cannot accept consumer-grade switching behavior. It centralizes control, reduces desk clutter, and supports a cleaner operator experience while keeping the underlying systems separated. For organizations standardizing secure access at the console layer, the CS1144D4 delivers the discipline and consistency that lower-cost switches often lack.