Corsair HX Series HX1200 1200 Watt Fully Modular Power Supply 80+ Platinum. USED WORKS EXCELLENT WITH NO ISSUES. HAS SOME SCRATCHES ON ONE CORNER FROM THE CASE IT WAS IN. THIS WAS USED FOR 6 MONTHS BEFORE REMOVED AND SAT ON MY DESK. 80 Plus Platinum: Runs cooler and uses less power than less efficient power supplies. Frequency : 47 – 63Hz. Fully Modular: Allows user to only use the cables they need for a cleaner looking build with better airflow. 35mm FDB fan with Zero RPM mode: Virtually silent operation at low loads. Plus12V Rail Switch: Gives the user the choice of a single plus12V rail or multiple plus12V rails.