With the Lindy RJ-45 Port Blocker Key, the user can quickly block open network ports and prevent users from connecting cables, devices or inserting foreign objects without permission. This protects against unauthorized access to a network or system and prevents accidental or malicious damage to ports. It can also act as a visual cue, showing inactive or disconnected ports, ideal for use in schools, offices or other public areas. The semi-permanent RJ-45 port blocker consists of a moulded plastic blocking cap that can be securely inserted into the RJ-45 connector with a special insert key. The blocker locks into the RJ-45 like a network cable and stays in place until it is removed with the insert key. To use, simply attach a blocker to the key and insert it into the connector. Hold the blocker in place and pull the key away. To remove, simply insert the key back into the blocker until it "clicks" and pulls it away. Safety note: the port blockers only work as basic physical