This is a brand new, unopened Corsair AX850 850W Fully Modular Power Supply. It’s an amazing, highly efficient, and extremely quiet power supply. I’ve used two of these in my PCs for almost 4 years now and they’ve worked flawlessly. It’s hard to part with this one since it’s extremely rare to find new online anywhere (SKU: CP-9020151-NA). 80 Plus Titanium certified, the Corsair AX850 power supply is highly efficient and fully modular. With a maximum power output of 850 W, it is compatible with the demands of the latest high wattage components and has connectors for 4x SATA cable, 2x EPS/ATX12V 8 pin, 2x peripheral cable, 1x ATX cable, 1x floppy adapter, and 3x PCIe 8 pin. The unit has a form factor of ATX and is designed with a 135mm cooling fan, modular design, and zero RPM fan mode. The unit measures 170mm in length, 86mm in height, and 150mm in width. With its black color and the customizable magnetic side labels (white, red, and blue included), it is a match for any computer setup.