All Crossfires 2004 to 2006 require DRB III with Crossfire multiplexer.

NAFTA Crossfires 2007 to 2008 Witech software and VCI pod, or Starscan with Crossfire cable, or older Witech software with Starmobile as a pass through device.

International Crossfires all years 2004 to 2008 use DRB III with Crossfire multiplexer.

Witech VCI Pods do not use multiplexers.

The Chinese clones use older Witech version software. If they are connected to the internet they will try and phone home so to say and without a real active subscription will lock the pod.

BTW, The DRB III will work with newer 2007 to 2008 Crossfires for many functions, but will not have access to all of the electronic modules.