For motherboard with a single PS / 2 ...

... And offers the possibility in the BIOS to connect 2 devices on the same connector! and there, unfortunately, is very uneven, and no indication in the manual most of the time. To believe that everyone should go over USB ... but hard to let go a keyboard and mouse perfectly suited for new hardware that does not offer the same feel and comfort. So this little cable end makes all the difference.
One star less because I have played the cutter to remove a burr on the motherboard side connector that prevented the connection.