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USB port blockers are compact devices designed for system administrators to physically block access to USB ports. They prevent unauthorised users from connecting USB flash drives, external storage or mobile devices to shared workstations and public terminals, helping to control data transfer and reduce security risks.

Advantages

These USB port blockers are simple to install and remove using a matching key, offer a discreet security measure without modifying hardware, and are suitable for shared or public environments where USB access must be restricted. The keyed system ensures only authorised personnel can restore port access.

Key specifications

• Compatibility: standard USB-A ports
• Operation: insert blocker into port; use matching key to lock and unlock
• Material: durable plastic (non-conductive)
• Colour-coded: key and blocker must match by colour
• Use case: shared workstations, public kiosks, office equipment

How to use

Attach the key to the locking mechanism and insert the blocker into the USB port until it seats. Release the sliding mechanism on the key to leave the blocker locked in place. To remove the blocker, insert the same matching key into the blocker and pull it out. Ensure the key colour matches the blocker colour before attempting to remove.

Recommendations

Store keys securely and assign them only to authorised staff; keep spare keys in a controlled location. Verify port compatibility before purchasing and replace damaged blockers to maintain physical security.