Newlink Micro NL KVMP2PC NLKVMP2PC 2 port KVM Switch Reviews Information

Pardon me, but apart from describing the yellow bit on this otherwise neat device as "strain-free",the manufacturers neglest to say HOW it should be attached to desktop or PC.Maybe I´m a bit slow,but there seems to be a distinct thumb-grip and a little,countersunk bit which refuses every kind of persuasion to push it further down!How the heck is it done?-Or is it just a matter of sticking any-old screw in the non-screw shaped hole and screwing it home? Sorry, guys.As I said it works fine and it´s easy to set up.I just can´t stand design superfluity-please tell me I´m wrong!