Even I as a passionate modder want my two cents. As a real Corsa Irfan (housing, watercooling, fan, of course had to be a Corsair PSU Granted makes the PSU looks very impressive with 850 watts. Optics is very good, there is no noise of itself, because the fan starts only from 40% load. The Package Contents was fully and clearly, to attach small cable ties, a aufklebbares Corsairlogo and screws. The installation went smoothly, only the label of the cable is defective. One half was inscribed, the other not. Here beginners or nontechnical may get their problems. For me no problem, so 5 points. The star deduction is because the ribbon cables are all quite stiff, making it difficult to clean laying in a mid tower case. Since I am a Corsair Carbide Air 540 have, this is not an obstacle for me, because I have about 13 cm of space behind the motherboard. So altogether we can say. For CrossfireX users or overclockers and modders this power supply is to use genuine, but who has no or a smaller idea of you should look as already described by previous speakers at bequit.