The Seasonic Prime Platinum 850 watt power supply is a 80 plus platinum certified power supply and guarantees stability and reliability. It boasts a near-perfect voltage output which represents Seasonic’s market leading engineering feat. This unit is ideal for users who want to reduces noise levels in their work environment, as it has an oversized, 135 mm Fluid Dynamic Bearing Fan that is controlled by Seasonic’s proprietary Premium Hybrid Fan Control. An innovative Cable-free Connection Design solution employs a highly conductive copper plate to replace the traditionally used cables for a cleaner design and to increase power efficiency.