This is the second adapter that I command. The first, from another supplier, did not work, the Amazon has repaid me. This is the same, it does not work, there really is a connection problem. The keyboard is currently connected by a dual PS / 2 adapter cable with primer, it works but it's not aesthetics. The PS / 2 connections are made on 6-pin, 4-pin to USB, so there has 2 pins that are ignored or connected in redundancy. Originally the PS / 2 connections were differentiated between the mouse and keyboard. There may be some accessories manufacturers have neglected this aspect of the wiring.
