Geonosian Power Cubes are enhancements unique to the SWG universe that are used in the crafting of weapons and armor, sometimes as a required component. They are dropped by Crazed Geonosians in the Geonosian Caves on Yavin IV for the most part. They were farmed heavily in the old days of Galaxies for their occasional high potency and were used to create notably powerful items.
Currently there are four verified variants, White, Green, Red and Yellow. Color doesn't matter though. They have a unique serial number, and all say: A power cube used to increase the effectiveness of the Geonosian items. This one is (Color).