Lindy RJ45 port locks prevent unauthorised use of RJ45 ports to access networks and systems. They plug into the ports with a special insertion key and can only be removed using a key of the corresponding colour. 1 x key, black Blocks unauthorised access to RJ45 ports Prevents users from inserting cables into the RJ45 port Port locks are almost flush with the port front to prevent forced removal without a key Compatible locks (Ref no. .47891 and 47892) Each key works only with a lock of the same colour Please note: The lock will only act as a basic physical and visual deterrent to tampering. It will not prevent a determined attacker, intent on gaining physical access to a port.