When access control matters as much as uptime, secure KVM hardware has to do more than switch video. The SC DVI Secure KVM 4 Port SD is designed for controlled environments that require a single-display console and four-port DVI switching without adding unnecessary complexity to the operator station. This model is well suited to security-conscious deployments where users need to move between connected systems while maintaining a clear separation of workflows. Its rack-mountable design supports structured installations, and the single-display format keeps the console experience focused and predictable. For teams managing sensitive infrastructure, secure KVM is not a commodity purchase. It is part of the control plane. This Vertiv CYBEX model is built for organizations that need dependable operator access, consistent console behavior, and a hardware footprint that fits into formalized server-room standards.