The Siriex Apparatus was a legendary weapon of the lost Briavian civilization, said to be able to protect them against all enemies, no matter how great the forces against them were.

In 2377, an archaeological team funded by entrepreneur Rod Portlyn, and headed by his brother Wade, discovered an ancient device capable of translocating individuals and entire starships into an alternate dimension. Wade theorized that this device (dubbed "the Zapper" by Rod) could have been the legendary Siriex Apparatus. Captain Montgomery Scott further theorized that this same device could have been their universe's counterpart to the Tantalus Field, the weapon used by James T. Kirk in the "mirror universe". (CoE eBook: the Art of the Comeback)