These combat droids were made in the factories of the Kol Huro system.
The Kol Huro combat droids were equipped with so many weapons that they could not move. They were noted to be universal.
In 39 BBY, Raith Sienar smuggled them past Coruscant customs and had them stored at minimum power level, removing their core intelligence and encasing them "alive" in transparent cubes in his underground museum.
- Rogue Planet (First appearance)