Secure input paths matter when the workstation is part of the security boundary. The Black Box KVS4-1004KX is positioned for environments that require controlled keyboard and mouse switching across four systems, helping reduce the risk of cross-contamination at the operator console. This secure KM switch is built for deployments where access discipline is as important as performance. A 4-port design gives administrators and operators a practical way to manage multiple connected systems from a single desk while keeping the workflow contained. That makes it a strong fit for regulated operations, sensitive control rooms, and other environments where a standard peripheral switch is not enough. Choose this model when you need a purpose-built control point that supports security policy without adding complexity. It is the kind of hardware that earns its place by reducing exposure, simplifying operator movement, and reinforcing a tighter desktop security posture.