The latest operating system for the X-Station is version 2.3.03. To find out the full version of operating system installed in an X-Station, hold down the input button in the audio section and turn the unit on. The installed OS will be displayed on screen for a brief period of time. The OS files and an OS install utility can be downloaded from the Downloads page of the Novation website. If the X-Station is being used with a USB hub it will be necessary to power the USB hub so that enough current can be supplied to the X-Station. If the X-Station is used with an unpowered USB hub this may cause improper operation of the X-Station and/or the computer it is connected to.