Sputter Nutters
From Starsonata Wiki
Sputter Nutters are a drop from an Equanimity. They can be found through most of the Earthforce Layer. They are cloaked and it is generally recommended to bring a radar. Sputter Nutters is the commodity needed for leveling Electrical Engineering [The skill] in which you can achieve up to level 18 Energy systems from Nihilite. The drop chance for these ranges from 75% - 100%. It is a very common drop.