The Corsair RM850x 850W 80+ Gold Fully Modular ATX PSU CP-9020200 Box All Cables is a high-quality power supply unit designed for computer systems. With its maximum power output of 850W and 80+ Gold certification, it ensures reliable and efficient performance. The fully modular design allows for easy cable management and a cleaner setup inside the computer case. Featuring a single fan for cooling, this ATX PSU from Corsair comes with a 10-year manufacturer warranty, making it a durable and long-lasting choice for users looking for a dependable power solution for their system.