Power your high-end rig with the Corsair RM850i - 850 Watt fully modular power supply. Its 850W capacity is ideal for running the latest, high-end CPU and GPU combinations. This power supply is rated at 80 PLUS Gold efficiency, generating low heat and low operating costs while delivering top tier performance. This unit uses 100% Japanese solid capacitors for reliable, stable performance and a long lifespan. The fan features fanless mode technology which makes the fan spin only when the unit is performing heavy loads. The fully modular design gives you an easier time installing and will help you manage you cables better.