RA Lower Half / BG Mk IX +2.5 +2.8 +3 +3.2
RA Lower Half / BG Mk X +2.8 +3 +3.2 +3.5
RA Upper Half / MG Mk XI +3.2 +3.2 +3.5 -
RA Upper Half / MG Mk XII +3.5 +3.5 - -
Unlike weapons, shields, etc there does not seem to be any attributes intrinsic to quality. When I look at the details for consoles in game the descriptions are the same regardless of level or quality. Yet, clearly the exchange puts a premium on purple. Is there difference between Mk XI rare +3.5 and Mk XII common +3.5.
I know a lot of things are assumed around but then there are many players who spend hours doing controlled experiments on tribble. That said I would not presume to know what are the undocumented differences in these consoles. With Dilitum at a premium and STF drops are like getting hit by lighting I want spend the EC efficiently as possible.