This wired remote has been designed for direct access to the most frequently used actions and commands of total mix FX, being an indispensable tool in the studio's daily applications. Its extremely flexible configuration through total mix FX will simplify workflow and greatly increase the usability of the RME interface in most real world situations. The arc USB is a USB 1.1 (UAC1) MIDI remote control, natively compatible to windows and Mac OS X. As soon as it is present in the operating system totaimix FX will detect it and communicate with it, without disturbing other remote controls. Therefore it is also not necessary to switch the arc USB on or off within total mix FX - it will just work. And because it communicates with total mix FX (via USB) it is compatible to all RME audio interfaces that are detected and supported by total mix FX. This goes back to RME interfaces released 2001! As soon as the arc USB is connected to a computer any button press or wheel turning will cause the respective action performed by total mix FX - and therefore also by the RME audio interface.With the ufx and ufx II the arc USB can also be connected directly to these devices, currently the only RME interfaces having an internal USB 1.1 host with matching connector. This way of connecting is handy in stand-alone mode, where the arc USB is also supported by the ufx and ufx II.The arc USB is bus powered, but draws only little current.