![Data coolant](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/8/8f/Data_coolant.jpg/revision/latest/scale-to-width-down/180?cb=20070410024328&path-prefix=en)
Data punctures a coolant tank
![Plasma coolant tank schematic](https://cdn.statically.io/img/static.wikia.nocookie.net/memoryalpha/images/c/cb/Plasma_coolant_tank_schematic.jpg/revision/latest/scale-to-width-down/180?cb=20110102203150&path-prefix=en)
A schematic of the plasma coolant tanks aboard the Enterprise-E
A coolant tank was a containment unit to store gases or liquids such as plasma coolant, used to cool parts of a starship or any vessel or base whose power generation units created extreme excess heat that could damage or destroy nearby components or structures.
The USS Enterprise-E had coolant tanks on the left and right sides of the warp core. One tank was punctured by Data in a final blow to the Borg Queen. (Star Trek: First Contact)