Review USB 2.0 to PS / 2 keyboard mouse cable

I had looked around for a USB keyboard because I wanted to play the game "Frets on Fire" in multiplayer and met with my search to aforementioned adapter which was offered at a fairly low price and slammed. Repent I did not, the cable works on the PC as well as on a laptop, there is no stop delay and the installation is at least Windows 2000 or later automatically.
Overall I would say to all those a USB keyboard or mouse is too complicated / expensive is the adapter the right device.