This port blocker set by Delock is an accessory for 20923. A total of 10 HDMI ports can be blocked with the set. Access by cables to the port are then no longer possible. Note To release the lock, the tool from set 20923, 20924, 20925, 20926 or 20927 is required. Specification https://elecena.pl/product/25827577/20948-port-blocker-set-for-hdmi-female-port-10-pieces 2024-05-07 https://elecena.pl/product/25827577/20948-port-blocker-set-for-hdmi-female-port-10-pieces 2026-03-04