Transmatter portal

A transmatter portal is a construct that is capable of instantaneous travel between any two points in the universe.

History
Roulette began working with Maaldorian slavers to kidnap Human subjects. They used a transmatter portal located under a fake health clinic to transport humans from Earth to Slavers' Moon in order to sell them into the galactic slave market. Kara Danvers and Mon-El investigated a string of missing persons and discovered their plot. They both went through the portal to rescue the kidnapped humans. When Alex Danvers led a D.E.O. strikeforce to the portal, J'onn J'onzz recognized that it was a transmatter portal and tasked Agent Winn Schott to get the portal working. He activated it allowing Alex to lead the D.E.O. on a rescue mission to Slavers' Moon. When they returned with the rescued human captives, Winn reactivated the portal allowing everyone back to Earth.