A large source of gear exchanges for Carbonite Circuit Boards was out of the daily challenges. This was a major source of gear whose value got halved recently. Although new gear had been added to those challenges, it was never doubled making the switch a net loss for players. This change increased the difficulty of adding lower relic which went against their stated intention of us engaging in relics.
I spend most of my energy and store credits farming kyrotechs as every new character requires at least 300 before g12. Thus, I am not farming gear to exchange it for the Circuit Boards.