There is a cube black. Everybody knows that one.
The green one is meant as a solo upgrade.
The purple seams to be a smaller one.
There is a blue one on the profiCNC store, but there is NO info on that, none that I could find.
The yellow and orange are on the ardupilot code already, but no info on those as well.
Is it all still secret, or can someone explain a bit about their differences?
Hi,
The blue model is one where all the components are made outside of China (Indonesia or Malaysia, not sure) and then sent to the USA for construction. Its a USA made version to allow the defence industry to use them without a risk of having other countries get in the electronics.
The orange and Yellow are built with F7 processors. One has 2 meg of memory and the other has 4 Meg of memory. The Black has 1 Meg of memory and the last time I checked, Ardupilot FW is about 850Kb in size. The Black also uses an F4 processor (and only around a quarter of that processing is used). Chinese copies will be marketing their “faster processor” so these allow Cubes to sound relevant even though they are currently a bit overkill.
The colour red is saved for a super computer version that does not yet exist 
David K
Thanks!! That explained it nicely.