Various commercial products for OpenBSD are available from the following companies:

• Open Sound System
  (i386 only)
  A substantially spiffed-up commercial version of the OpenBSD audio device drivers is available from http://www.opensound.com/. These replacement drivers are compatible with the audio drivers OpenBSD ships with, but they support many additional cards and take full advantage of these cards' features.

• RTMX
  RTMX sells a version of OpenBSD which has a full complement of POSIX realtime features added to it.

• XSuSE X servers
  (i386 only)
  S.u.S.E. distributes free OpenBSD binaries of their XSuSE X servers for cards not supported by XFree86.