U-Wing Starfighter
The UT-60D U-Wing Starfighter/support craft was a gunship/troop transport used by the Rebel Alliance. The ship only saw limited production before the Incom Corporation was nationalized by the Galactic Empire. A few of these fighters landed into Rebel hands thanks to Bail Organa falsifying paperwork.
Vector Sigma
Vector Sigma is a multiversal super-computer which exists across many, possibly all, universes. These multiversal nodes are networked together as the "Vector Sigma Gestalt". It frequently acts the will of Primus, and is what granted every Cybertronian with a sentient life. Though activating it requires a key, and possession of the key brings great power. Thousands of years in the future, some Vector Sigma nodes would be protected behind a shell program called the "Oracle".
Velocity 9
A highly addictive drug that grants super speed, but speeds up the body's metabolism leading to dehydration, severe exhaustion and rapid aging. The original, developed by Edward Clariss, had no such side effects but the effects were only temporary. Later Deathstroke was able to fashion a particular variant of Velocity 9 devoid of any ill-effects, for Inertia's use.