I think this company does not understand how to think and conceptualize in half rack terms. While 19" units measure 19" INCLUDING both rack ears, half rack units do not measure 9,5" nor WITH or WITHOUT both rack ears. Half rack units measure 9,5" including one rack ear. The other has to be correctly accounted for. They messed this up and made the case too wide.
I had to install a 13mm extension bar in between the rack case and rack rail, in order for half rack units to fit correctly.
You can only fit equipment there using their proprietary rack shelves, available separately.
Also, the locks are terrible, and even when they seem properly secured, they can unlatch at any moment, even when new.
Good concept, unfortunately it has design flaws.