The prototype Triumviroid. (Masters Saga: "Love Song")
The Triumviroid was a prototype mecha developed by the Robotech Masters during the Second Robotech War. It was drone-like, self supporting, with no pilots. It could analyze, stargaze, and attack within a fraction of a second, and prove deadly in conflict simulations. (Masters Saga: "Love Song") For unkown reasons, it was not seen out of initial testing.