Zalman's quality is proven. The power is by appointment with my 290 and my R9 3D games. For the connections against ATTENTION !!!!! ... it's taken the same 6-pin with the alignment keys, but the yellow and black cables are not arranged in the same way according to the brand of power supply. I was missing a 6-pin connector for an accessory, so I took out my old PSU (850W Antec). I have not made that blunder son were not prepared in the same way ... it grilled me a wire with white smoke ... O_O ... luckily I resoldered everything and nothing grilled ... So attention to avail of son ... !!