Link to product website: http://www.mixman.com/products/dm2.html
For anyone interested in getting the DM2 running under Linux, Jan has produced a nice HOWTO video:
http://www.youtube.com/watch?v=e7tonj6_Oik
Important points:
Steps to get it working:
Source: http://mixxx.org/forums/viewtopic.php?f=3&t=53