The CORSAIR RMx Series RM850x 80 PLUS Gold Fully Modular ATX Power Supply is a high-quality and reliable power supply unit designed for ATX form factor motherboards. With a maximum power output of 850W and a single fan for efficient cooling, this power supply offers stability and performance for your computer system. The modularity of the unit allows for easy cable management and installation. Backed by a 10-year manufacturer warranty, the CORSAIR RM850x is a top choice for those looking for a dependable and efficient power supply for their computer setup.