The Corsair RM850x SHIFT Fully Modular ATX Power Supply is a high-quality power supply designed for computer enthusiasts looking for reliability and performance. With a size of 850W and a sleek black color, this power supply is perfect for ATX 3.0 and PCIe 5.0 systems. The fully modular design allows for easy cable management and organization, while the 80 PLUS Gold certification ensures energy efficiency and stability. The Corsair brand is known for its quality and durability, making this power supply a great choice for anyone building or upgrading a computer system.