The SwitchView SC240 4-Port KVM Switch include USB common access card (CAC) reader support. CAC support is required for all government employees attempting to log in to government systems. This requirement is specified in the Homeland Security Presidential Directive 12 (HSPD12). The SwitchView SC240 4-Port KVM Switch allow desktop IT administrators to only deploy a single CAC reader that will be switched to all computers connected to the switch.