About this item This mining power supply can be a perfect tool for your Cryptocurrency mining rig. DC circuit design, with stable voltage output. The miner PSU can be used in 110V-240V. Input AC110V, rate power is 2000w, Power efficiency is 80%, so out put power is 2000*0.8=1600W. Input Above AC240V, the rate power is 2000W, Power efficiency is 90%, so out put power is 2000*0.9=1800W. Please calculate the rated power of the GPU, We suggest to leave 200W for motherboard, fan, and other wire consumption. Our power supply with over-load, over-heat, over-temperature, short-circuit protection. Maximum protection of the graphics card from damage. Applicable to all kind of mining miner(like S7,S9,L3 ,D3) and Graphic Card. Power supply is special for mining machine, in order to effectively dissipate heat, the fan speed is above 2300 RPM, so the noise is normal, Using a new large-capacity large magnetic ring material, very stable. Please contact us if you recieve product is DOA, we do our best to protect the interests of customers.