The NZXT ATX 3.1 850 Watt 80 Plus Gold Fully Modular Power Supply in black is a high-quality power module designed for universal compatibility with ATX and C850 models. With a maximum power output of 850W and a single fan for cooling, this power supply offers reliable performance for your computer system. Its modular design allows for easy cable management and a clean setup, while the 24 pin and 20+4 pin connectors ensure compatibility with various components. With a compact ATX form factor and a sleek black color, this NZXT power supply is a great choice for those seeking efficient and dependable power delivery for their computer setup.