I need an extension cable with male USB to PS/2 MINI DIN 6 connector. I have something like this adapter:
However it does not fit in my Aten KVM switch correctly (the reduction is wider than standard PS2 connector) and I do not want to buy another switch or mouse. I'm thinking about creating an adapter from an old keyboard cable plus a male USB connector - in fact the same as the adapter on the picture, but with about 20cm of cable. However, I am not sure whether the mentioned adapter is passive or whether there is some integrated circuit to do the conversion.
I could also use a PS2 extension cord, but it's not an optimal solution. Has anyone got any experience in this area? I don't want to disassemble the reduction just to find out what is inside!