This Corsair RMX Series RM850x power supply has all the necessary connectors, including 4+4 CPU, 20 Pin, 4 Pin Peripheral, 24 Pin, and 20+4 Pin. It has a maximum power capacity of 850 W and a cooling system that includes one fan. The package dimensions are 13.19×8.27×5.51 inches and it weighs 7.67 pounds. The power supply is fully modular, making it easy to customize cable placement and cable routing. It is certified 80 PLUS Gold, ensuring high efficiency and low heat output. This item is brand new and unopened, making it the perfect choice for anyone in need of a reliable, high-quality power supply.