The DIGITUS USB Port Blockers are a small, highly effective protection for USB ports designed like a USB stick, safeguarding your devices and the sensitive data they contain. Simply block the USB ports on your PC, laptop, or other devices to prevent unauthorized or unknown individuals from stealing your data or installing harmful software using USB devices. Insert the USB Port Blocker into an available USB port on your device, release the lock, and pull the key out of the device. The USB attachment remains in the slot, effectively preventing the connection of USB devices. If you wish to use the USB port, you can easily remove the blocking USB attachment just as you inserted it – insert the key into the attachment and pull it out of the USB port along with the attachment. The removal of the attachment is only possible with the appropriate key.