Lithone

The Lithones were a race of sentient alien robots from the planet Lithone.

Biology
Lithones are quite similar to Cybertronians in a nearly every single way save the ability to transform. They possess a very high percentage of "emotional circuits" in their computer brains, which affects their individual personalities in different ways. Their race appears to feature not only male and female members, but robotic "children".

Culture and society
By nature, they are not vengeful, making them lenient towards troublemakers. Technology-wise, the Lithones have spaceships capable of interstellar travel. They also may or may not have their own superhero.