SmartKeeper ESSENTIAL USB-B lock for locking open and unused USB-B interfaces. SmartKeeper is a physical IT prevention security solution for securing IT/OT hardware interfaces Effective protection against unauthorised access to IT/OT interfaces (ports). Preventive against data loss, infiltration of malware software, sabotage and manipulation Easy to install with visual deterrent effect. A very extensive range and suitable for all standard interfaces Effective and effective; DSGVO, ISO27001, IT basic protection compliant Contents: 4 x Micro USB B port locks including mini type key