Tech lab

Image:TechLab.jpg The Terran Tech Lab is an add-on in StarCraft II. Its modular design enables it to be attached to several different Terran structures which produce units.

A structure attached to a Tech Lab can produce a higher tier of units. For instance, a Factory attached to a Tech Lab can produce Siege Tanks.

Note that a Terran structure cannot be attached to both a Tech Lab and a Nuclear Reactor, so it cannot enjoy the benefits of both.