ZZ9000 blue and black

Hi there; nice to join to community.

I have two ZZ. Both are R3, but new one has a black CPU module. So I have one ZZ in multi color design (connectors are white, insted of black).
The black one ZZ work only with fw 1.12.1 (or newer, I guess)

Somebody know what is the diferences betwen those modules?

My little investigation tells me that the difference is in the network module chip’s version.

Thanks for your reflections.

Black CPUs module.