With this USB port blocker set by Delock USB Type-A sockets can be secured against unauthorized access. The port blockers housed inside the tool are placed on the tip and pushed into the USB port, blocking the USB socket. A total of 4 USB Type-A ports can be blocked with the set. Access by cables or USB sticks to the port are then no longer possible. To open the lock, the included tool is required. Technical details https://elecena.pl/product/27804459/22031-usb-a-port-lock-1x-key-4x-locks-yellow 2025-02-06 https://elecena.pl/product/27804459/22031-usb-a-port-lock-1x-key-4x-locks-yellow 2026-03-07