SFP Port blocker

Used to physically prevent the insertion of an SFP module into a SFP slot. The blocker fits all the way in. The thing does not lock and can be remove somewhat easily. Mostly used to prevent people from plugin in an SFP in a combo port where the copper link is already used.

Works in Cisco, FS.com, Ubiquiti, and Mikrotik switches that I have laying around.