The Rosewill VMG850 80+ Gold Power Supply Unit is a high-quality power module designed for universal compatibility with personal computers, particularly those with AMD branding. With a maximum power output of 850W and a cooling system featuring a single fan, this unit is reliable for maintaining stable voltage levels. The modular design allows for easy cable management, while the surge energy capacity of 125J ensures protection against power spikes.This is a brand new unit in an unopened box. Outer packaging still intact.