Nanotech

Exactly what it says on the tin, Nanotech is one of the most important technologies of the age. The deployment of billions of tiny and microscopic robots through the use of massive computational power.

Required for construction, fabrication, war supply, food production, etc. There are not many industries that can avoid the use of Nanotech in its field.

It should also be considered that it's a technology completely reliant on Ms, as they're the ones (at least the specially designed ones) with the processing power to control large swarms, and have the ability to upgrade that further than any organic.