The ZT series is the superb choice for performance and power users who need solid, reliable PSU. With a completely modular design, ZT Series keeps your internal case environment organized by eliminating wire clutter and improves airflow by using only the cables you require. Kept supremely cool with a load-controlled 140mm fan, the OCZ ZT Series PSU was engineered to be ultra-quiet by eliminating distracting noises from your PC when working or gaming. With an 80-Plus Bronze Certification featuring up to 85% efficiency under typical load environments, this power supply remains rock solid and stable under pressure.