Professional Series, HX650, 80 Gold, ATX, PS/2 US Version The Corsair HX 80PLUS Gold certified modular power supplies offer quiet performance, with a fanless mode at low power loads, and the flexibility of using only the cables needed for a clean system build with optimal airflow. Industrial-grade specs like a 50C power rating and upgraded internal components like high quality 105C capacitors back up legendary HX series quality, and provide you with peace of mind for a full 7 year warranty.