but poor design: -Of connections on three sides which implies difficulty of installation in "rack". -Of wrong place positions LEDs therefore invisible when presenting the ignition "façade". For the use of this switch is essential in most cases. The keyboard shortcut works very badly under MS Windows, Linux only supports the process. However in the state, and for lack of better, this machine makes me great service. ====> 4 ordis connected 2 2 Linux and Windows (7 and an old 98).