SmartKeeper Essential 1x DVI Port Lock. DVI port lock keeps interfaces locked when not in use to prevent unauthorised access. Caution: Key and USB port lock must be ordered separately. Can only be unlocked with the corresponding colour-coded Lock Key Basic (U03). Effective first-level protection - including against: * Unauthorised removal/copying of data * Infiltration of malware on devices * Intentional or unintentional removal of network/USB cables * Port attacks * Theft of PCs/Notebooks * Manipulation and sabotage SmartKeeper Essential is easy to use, without the need for complex software or configuration/updates. A professional, affordable and effective supplement to all previous security measures. SmartKeeper therefore provides highly effective protection against unauthorised interface access.