The Montech Century GPX850S 80Plus Gold 850w PSU is a high-quality power module designed for ATX form factor computers. With a maximum power output of 850W and a single fan cooling system, this black unit offers reliable performance for your computer system. The modular design allows for easy cable management and organization, making it a convenient and efficient choice for your computing needs. Compatible with universal brands, this Montech model is a solid option for those looking for a dependable power supply unit.Used but in good working order. Do not have the box for this PSU, however do have the cable pouch (see image, unsure if it has all the originally supplied cables, but should be close).