Hi Lieven, The card should be supported indeed by the hdspm driver, but the control interface is incomplete and there is no user space configuration tool for it like RME provides on other platforms. There is a ad-hoc mixer application looking a bit similar to TotalMix, named hdspmixer. Since a couple of months I am working on a new driver for the RME HDSPe MADI, AES, RayDAT, AIO and AIO Pro, including the TCO, Word clock, and analog I/O extension modules. (I also have a MADI FX at hand, but that’s a different beast.) I’ll start sharing beta versions of the driver in a couple of weeks. Best, Philippe.