The TAH-t System for DT consists of the implantable TAH-t with SynHall Valves, powered by PMA-approved external pneumatic drivers [the Circulatory Support System (CSS) Console, the Companion 2 Driver System and the Freedom Driver System]. The TAH-t System is intended to be implanted in the operating room by a qualified surgeon and is capable of supporting the patients both inside and outside the hospital.